United States

Department

of Agriculture

Forest Service

Rocky Mountain

Research Station

Resource Bulletin

RMRS-RB-1

March 1999

Comprehensive

Inventory of Utah’s

Forest Resources, 1993

Renee A. O’Brien

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Rocky Mountain Research Station

324 25th Street

Ogden, UT 84401

The use of trade or firm names in this publication is for reader information and does not

imply endorsement by the U.S. Department of Agriculture or any product or service

The Author ___________________

Renee A. O’Brien is Lead Ecologist and Analysis Team

Leader with the Interior West Resource Inventory, Monitoring, and Evaluation Program at the Rocky Mountain

Research Station in Ogden, UT. She holds a B.S. degree

in botany from Weber State University and B.S. and M.S.

degrees in range science from Utah State University.

Abstract ____________________________________________

O’Brien, Renee A. 1999. Comprehensive inventory of Utah’s forest resources, 1993. Resour.

Bull. RMRS-RB-1. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain

Research Station. 105 p.

This report presents the results of an inventory of Utah’s forest lands, completed in 1995. It is

the first of its kind for the Interior West States in that it includes all forested lands, regardless of

ownership or administrative status. It also includes information on a multitude of forest ecosystem

attributes.

Included in this report are tables and highlights of area, numbers of trees, biomass, volume,

growth, mortality, successional stage, understory vegetation, removals, and net change. Much of

the information is organized by forest type, species, diameter class, or owner. The report also

explains inventory design and inventory terminology, and discusses data reliability.

Roughly 29 percent of the area of Utah is forest land, and about 83 percent of the forest land is

administered by government agencies. Only about 5 percent of the forest land in Utah is reserved

from being utilized for wood products. The most common forest type is pinyon-juniper, composing

49 percent of the total forest land. The tree species estimated to have the highest percent of the

total number of trees is Gambel oak, with 25 percent. The tree species estimated to compose the

largest percent of biomass is Utah juniper, with 24 percent of the total biomass and 25 percent of

the total cubic foot volume. The total volume of wood in live trees in Utah is estimated to be over

15.3 billion cubic feet. The area of timberland not reserved from harvesting is about 4.9 million

acres, or 31 percent of the forest land. The net volume of growing stock on nonreserved timberland

is over 7.4 billion cubic feet, with almost 78 percent of that on lands administered by the National

Forest System.

Keywords: Forest land area, forest inventory, numbers of trees, biomass, volume, growth, mortality,

successional stage, forest type, double sampling.

Acknowledgements ___________

The Rocky Mountain Research Station gratefully acknowledges the cooperation and assistance of the Intermountain Region, Forest Service, U.S. Department of

Agriculture; the Utah State Forester and other Utah

Department of Lands personnel; the Bureaus of Land

Management and Indian Affairs, and the National Park

Service, U.S. Department of the Interior. A special note

of thanks to private landowners who provided information and access to field sample plots.

Cover: Landsat TM image of Utah from Edwards and others (1995)

and Homer and others (1997) with field plot and county overlay.
Highlights _____________________________________

Area

• The total land area of Utah is over 54 million acres. Roughly 29 percent or 15.7 million

acres is forest land.

• Pinyon-juniper and pure juniper forest types combined occupy almost 9.2 million acres,

or 58 percent of the forest land.

• About 39 percent of the forest land is administered by the USDI Bureau of Land

Management, 36 percent is administered by the USDA Forest Service, 6 percent is

State owned, 2 percent is in other public ownership, and 17 percent is privately owned.

• At the time the inventory was completed in 1995, only about 5 percent of the forest land

in Utah was in reserved status such as Wilderness or National Parks.

Biomass and Volume

• The total biomass in live trees in Utah forests is estimated to be 333.4 million tons.

• Total volume of wood in live trees in Utah is estimated to be in excess of 15.3 billion

cubic feet.

• Utah juniper makes up 24 percent of the total biomass, and 25 percent of the total

volume.

Growth and Mortality

• Gross annual growth of all trees on forest land in Utah totaled about 255 million cubic

feet in 1992. Mortality reduced gross growth by almost 50 percent to about 129 million

cubic feet of net annual growth.

• Aspen alone accounted for 25 percent of the net growth.

Contents ______________________________________

Page

Introduction .............................................................................................................. 1

Methods ................................................................................................................... 2

Overview of Tables .................................................................................................. 3

Highlights of Inventory Results for Total Forest Land .............................................. 4

Area ...................................................................................................................... 4

Forest type ......................................................................................................... 4

Stand age .......................................................................................................... 6

Stand-size class ................................................................................................ 6

Stocking condition ............................................................................................. 6

Habitat type ....................................................................................................... 8

Distance to road, and history of disturbance ..................................................... 8

Number of Trees ................................................................................................... 8

Biomass and Volume .......................................................................................... 11

Growth and Mortality ........................................................................................... 12

Risk of insect attack ......................................................................................... 12

Aspen decline .................................................................................................. 13

Understory Vegetation and Ground Cover ......................................................... 13

Highlights of Inventory Results for Nonreserved Timberland ................................. 15

Area, Volume, and Net Growth ........................................................................... 15

Removals ............................................................................................................ 16

Components of Change ...................................................................................... 17

Standard Forest Inventory and Analysis Terminology ........................................... 18

References ............................................................................................................. 23
Appendix A: Common and Scientific Plant Names ................................................ 25

Appendix B: Volume and Biomass Equation Sources ........................................... 26

Forest Inventory and Analysis Tables .................................................................... 27

Total Forest Land, Table 1 .................................................................................. 27

Area, Tables 2 Through 13 .............................................................................. 28

Number of Trees, Tables 14 and 15 ................................................................ 40

Biomass, Table 16 ........................................................................................... 42

Volume, Tables 17 Through 20 ....................................................................... 43

Growth, Tables 21 and 22 ............................................................................... 46

Mortality, Tables 23 Through 25 ...................................................................... 48

Understory Cover, Table 26 ............................................................................ 51

County, Table 27 ............................................................................................. 52

Nonreserved Forest Land ................................................................................... 53

Understory Cover, Tables 28 Through 32 ....................................................... 53

Number of Trees, Table 33.............................................................................. 57

Biomass, Table 34 ........................................................................................... 58

Volume, Tables 35 Through 38 ....................................................................... 59

Growth, Tables 39 and 40 ............................................................................... 62

Mortality, Tables 41 Through 43 ...................................................................... 64

County, Table 44 ............................................................................................. 67

Nonreserved Timberland .................................................................................... 68

Area, Tables 45 Through 49 ............................................................................ 68

Number of Trees, Tables 50 and 51 ................................................................ 72

Volume, Tables 52 Through 64 ....................................................................... 73

Growth, Tables 65 Through 70 ........................................................................ 79

Mortality, Tables 71 Through 79 ...................................................................... 82

Removals, Tables 80 Through 82 ................................................................... 87

Nonreserved Woodland ...................................................................................... 90

Area, Table 83 ................................................................................................. 90

Number of Trees, Table 84.............................................................................. 91

Volume, Tables 85 and 86............................................................................... 92

Growth, Tables 87 and 88 ............................................................................... 93

Mortality, Tables 89 and 90 ............................................................................. 94

Core .................................................................................................................... 95

Area, County, Tables 91 Through 97 .............................................................. 95

Number of T--rees, Tables 98 and 99 ............................................................. 98

Volume, Tables 100 Through 108 ................................................................. 100

Growth, Tables 109 and 110 ......................................................................... 104

Mortality, Tables 111 and 112 ....................................................................... 105
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 1

Introduction ____________________________________________________

This report summarizes the findings of a Statewide inventory of Utah’s

forest resources, completed in 1995 by the USDA Forest Service, Interior

West Resource Inventory, Monitoring, and Evaluation (IWRIME) Program,

as part of their Forest Inventory and Analysis (FIA) activity. This inventory

is significantly different in many ways from previous inventories of Utah

forests. The inventory was conducted on all lands having a minimum tree

stocking of 10 percent, regardless of the species of tree present or the

ownership or administrative status of the land. This includes wilderness

areas and other areas in reserved status. For these reasons, this report is the

first of its’ kind for the Interior West States.

This resulting report emphasizes a more ecological approach to presenting

forest land resource information, including species diversity, forest health,

and land use issues, as well as the more traditional estimates such as volume,

growth, mortality, and removals. Other information includes the occurrence

and cover of forbs, graminoids, and shrubs; estimates of biomass; and

occurrence and distribution of habitat types. Scientific and common names

for the plant species included in this report are listed in appendix A.

This inventory was made possible through a major cooperative effort

between many Federal and State agencies. IWRIME has not traditionally

conducted inventories on National Forest lands in the West, but in Utah, a

cooperative agreement and funding from the Forest Service, Intermountain

Region made possible an expanded inventory that included National Forest

System lands. The field work, data compilation, and analysis were done and

partially funded by the IWRIME program. The USDA Forest Service,

Intermountain Region, and the USDI Bureau of Land Management also

provided significant funding. Other cooperators include USDI Fish and

Wildlife Service’s GAP Analysis Program at Utah State University, and the

National Park Service; the Uintah-Ouray Indian Reservation; and the Utah

State Department of Natural Resources, Division of Forestry, Fire, and State

Lands. The inventory was conducted between 1991 and 1995. Data for

northern Utah have already been reported by O’Brien (1996), and Brown and

O’Brien (1997).

Comparison with forest statistics previously reported for Utah (Van Hooser

and Green 1983) should be restricted to area numbers. Methods for obtaining

area data are fairly consistent over time, but estimation of other attributes

such as volume or growth can vary due to procedural and definition changes.

Comprehensive Inventory of

Utah’s Forest Resources, 1993

Renee A. O’Brien
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 2

Methods _______________________________________________________

In previous inventories, forest lands producing less than 20 cubic feet per

acre per year and lands reserved from timber harvest were not field sampled.

Detailed inventory data were collected only for tree species normally favored

for commercial timber harvest. These species, such as ponderosa pine,

lodgepole pine, and Douglas-fir were collectively known as “timber species.”

Since the early 1980’s IWRIME has expanded its inventory to include other

tree species such as pinyon, juniper, and oak, collectively known as “woodland species.” In Utah, a location was classified as timberland if there existed

a minimum of 5 percent stocking of timber species. For current and future

reporting, the more ecological and all-encompassing term “forest land” is

preferred instead of timberland and woodland. However, some mensuration

and silvicultural definitions and techniques that were developed for timberland species are not available for woodland species. Therefore, the separate

terms will be used occasionally in this report.

IWRIME uses a two-phase or double sampling procedure (Cochran 1963)

for State inventories. The first, or photo interpretive, phase is based on a grid

of sample points systematically located every 1,000 meters across all lands

in the State. Forestry technicians used maps and aerial photos to obtain

ownership and vegetation cover type on 221,463 photo points in Utah. This

information was then used for stratification of field plots. Field crews

conducted the second, or field, phase of the inventory on a subsample of the

phase one points that occurred on forest land (USDA Forest Service 1994).

For this inventory, forest land was defined as land with at least 10 percent

stocking of trees; or lands currently nonstocked but formerly having such

stocking, where human activity does not preclude natural succession to

forest. All conifers of any size except pinyon, juniper, and yew automatically

qualify as trees, as do aspen, cottonwood, and paper birch. Other species such

as pinyon, juniper, maple, mountain mahogany, and oak were classified as

either trees or shrubs, depending on whether or not they have the capacity

to produce at least one stem 3 inches or larger in diameter at root collar, and

8 feet or more in length to a minimum branch diameter of 1.5 inches. The

sampling intensity on lands outside National Forests was one field plot every

5,000 meters, or about every 3 miles. For the most part, the sampling

intensity on National Forest System land was double that of outside lands.

A total of 8,385 field plots were sampled, of which 2,767 were forested.

IWRIME inventories provide a probability-based sample of forest resources across all ownerships that can be used for planning and analyses at

local, State, regional, and national levels. The sample was designed to meet

national standards for precision in State and regional estimates of forest

attributes.

A measure of the variability of inventory statistics is provided by standard

errors, listed in table 2 for estimates of area, volume, growth, and mortality

on forest land for the entire State. All tables (1-112) are found at the end of

this report. A 95 percent confidence interval can be computed for any

estimate by multiplying the estimate’s percent standard error (SE) by 1.96,

multiplying that product times the estimate, and then adding and subtracting that product from the estimate to get the bounds. The 95 percent

confidence interval for total forest land area is between 15.4 million and 16.1

million acres. Similarly, forest land volume ranged from 14.8 billion to 15.9

billion cubic feet, net annual growth on forest land ranged from 109.5 million
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 3

to 147.9 million cubic feet, and annual mortality on forest land ranged from

108.7 million to 143.8 million cubic feet.

Users may compute statistical confidence for subdivisions of the reported

data using the formula below. Because sampling error increases as the area

or volume considered decreases, users should aggregate data cells as much

as possible. Sampling errors obtained from this method are only approximations of reliability because this process assumes constant variance across all

subdivisions of totals. The formula is:

 

~ ˆ

ˆ SE

SE g t t

g

= Y

Y

where:

SEg

~ = approximate percent standard error of 

ˆ

Yg

SEt = percent standard error of 

ˆ

Yt

 

ˆ

Y = table variable of interest

g = table cell or group of cells of interest

t = totals from table 2

Overview of Tables______________________________________________

Land area, number of trees, wood volume and biomass, growth, mortality,

and removals are the primary categories for which statistics are tabulated

and presented in the FIA tables. There are five groups of summary tables:

• Tables 1-27 are for all forest land, both reserved and nonreserved.

• Tables 28-44 are for nonreserved forest land, which is forest land not

withdrawn from tree utilization through statute or administrative

designation.

• Tables 45-82 are for nonreserved timberland, that is nonreserved

forest land where timber species—those species traditionally used for

industrial wood products—make up at least 10 percent stocking.

• Tables 83-90 are for nonreserved woodland, meaning forest land

where timber species make up less than 10 percent stocking.

• Tables 91-112 are a core set of tables comparable to similar sets

presented by other FIA groups across the Nation, and used in the

Resources Planning Act Assessment to represent lands traditionally

referred to as “commercial timberland.” These core tables are for

nonreserved timberland that has a minimum productivity of 20 cubic

feet per acre per year.

Highlights presented in the following sections are for total forest land and

for nonreserved timberland.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 4

Highlights of Inventory Results for Total Forest Land________________

Area

Utah encompasses over 54 million acres (table 2). Roughly 29 percent of the

area or 15.7 million acres is forest land (fig. 1). Of the forest land, 39 percent

is administered by the USDI Bureau of Land Management, and 36 percent

is administered by the USDA Forest Service (fig. 2). About 6 percent is State

owned, 2 percent is in other public ownership, and 17 percent is privately

owned. About 5 percent of the forest land in Utah was in reserved status such

as Wilderness, Research Natural Areas, or National Parks at the time the

inventory was completed in 1995. Any ownership or land status changes that

happened after 1995 are not included in this report. Unless otherwise

indicated, lands of both reserved and nonreserved status are included in the

statistics in this report.

The following area variables describe the structure and composition of

Utah forests. Some of the variables were originally developed to describe

forests in terms of growing-stock and timber production, and consequently

had to be adapted for use in describing all trees on all forest land.

Forest type—Forest type refers to the predominant tree species in a

stand, based on tree stocking, and is one indicator of forest diversity. A map

of Utah forest types based on Edwards and others (1995) and Homer and

others (1997) is presented in figure 3. Table 3 shows the pinyon-juniper type

Figure 1—Distribution of land area by land

class, Utah, 1993.

Owner group

BLM

NFS

Private

State

Other public

Figure 2—Distribution of forest land area

by owner group, Utah, 1993.

Land class

Timberland

Woodland

Nonforest

Water
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 5

Figure 3— General distribution of major forest types in Utah, based on Edwards and

others, 1995, and Homer and others, 1997.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 6

is by far the most abundant forest type in the State, covering almost 7.8

million acres, or 49 percent of the forest land. Another 1.4 million acres—

almost 9 percent—of Utah forest land is pure juniper. Together, the pinyonjuniper and juniper types compose 58 percent of Utah’s forest land, with 97

percent being nonreserved. Figure 4 displays area and land status by forest

types. Aspen is the second most abundant forest type with over 1.4 million

acres, or 9 percent. Douglas-fir makes up 7 percent of the area; Gambel oak

and spruce-fir, 5 percent each; ponderosa pine, 4 percent; and lodgepole pine,

Engelmann spruce, and white fir, 3 percent each. Maple, mountain mahogany, limber pine, blue spruce, and cottonwood combined make up the

remaining 3 percent of the forest land.

Stand age—Figure 5 shows area of forest land by stand age class. Stand

age is an important forest attribute but is difficult to quantify and should be

used carefully. Stand age for timberland is computed using ages of growingstock trees, weighted by trees per acre. Stand age for woodland is usually

based on the age of one selected site tree. Based on these criteria, 40 percent

of all forest stands in Utah are estimated to be between 50 and 100 years old

(table 11).

Stand-size class—Another variable, stand-size class, classifies forest

land based on the predominant stocking by size of all live trees present (tables

4 through 7) and can give an idea of the structure of Utah forests. Figure 6,

which shows distribution of forest land area by stand-size class and owner

group, illustrates that relatively few stands are composed mostly of small

trees, such as stands that have been clear cut or burned.

Stocking condition—Many factors influence the rate at which trees grow

and thrive, or die. One of those factors is the stocking (relative density) of trees.

Table 9 presents five categories of stocking condition that range from nonstocked

to overstocked. Overstocking causes tree growth to slow, which makes trees

more susceptible to insects and disease. About 2.2 million acres, or 14 percent

of the forest land in Utah, is estimated to be overstocked. Figure 7 shows area

by stocking condition for five predominant timberland forest types.

Blue spruce

Cottonwood

Limber pine

Maple woodland

Mountain mahogany

White fir

Engelmann spruce

Lodgepole pine

Ponderosa pine

Spruce-fir

Oak 

Douglas-fir

Aspen

Pinyon-juniper

Forest type

0 2,000 4,000 6,000 8,000 10,000

Thousand acres

Land Status

Nonreserved

Reserved

Figure 4—Area of forest land by forest type and land

status, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 7

Figure 5—Area of forest land by stand age class,

Utah, 1993.

Sawtimber 

(>9.0")

Poletimber 

(5.0-8.9")

Seedlings/ 

Saplings (<5.0")

Nonstocked

Stand-size class

0

1

2

3

4

5

6

7

8

9

Million acres

Owner Group

NFS

Other public

Private

Overstocked Fully Stocked Moderately Stocked Poorly Stocked Nonstocked

Stocking condition (relative density of trees)

0

50

100

150

200

250

300

350

400

450

500

Thousand acres

Major timberland forest types

Douglas-fir

Ponderosa pine

Lodgepole

Spruce-fir

Aspen

Figure 6—Area of forest land by stand-size class and

owner group, Utah, 1993.

Figure 7—Area by stocking condition and major timberland forest type,

Utah, 1993.

1-50 51- 

100

101- 

150

151- 

200

201- 

250

251- 

300

301- 

350

351- 

400

401- 

450

451- 

500

501- 

550

551- 

600

601- 

650

651- 

700

Age class

0

1

2

3

4

5

6

7

Million acres
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 8

Habitat type—Habitat type describes lands in terms of their potential to

produce similar plant communities at successional climax. The climax plant

community, which is the theoretical end result of plant succession, reflects

the integration of environmental factors that affect vegetation such as soils,

climate, and landform. Habitat type classifications are named for the

predominant overstory and understory plant species at the time of successional climax. In Utah, habitat type classifications have been defined for

most Utah forest types traditionally considered to be timberland (Mauk and

Henderson 1984). However, because well-defined successional states are not

known for aspen, classification schemes for aspen describe existing vegetation and are called community types instead of habitat types (Mueggler

1988). All timberland plots visited by IWRIME field crews were classified by

habitat or community type. Most woodland types remain unclassified in

Utah.

 Table 13 presents area of forest land by habitat type series and forest type

(with woodland types listed as “unclassified”) and gives a general indication

of forest successional status for timberland in the entire State. It is estimated that 30 percent of all timberland is in the subalpine fir habitat type

series, and another 20 percent is in the aspen community type series. Over

59 percent of Engelmann spruce forest type and 41 percent of lodgepole forest

type occur on subalpine fir habitat types.

By summarizing inventory data by habitat type, Utah forest land can be

categorized in a way that theoretically will not change with disturbance or

advancing succession. The use of potential vegetation to classify forests is not

intended to indicate an abundance of climax vegetation in the current Utah

landscape, nor is it meant to suggest that climax conditions should be a

management goal. In fact, most forest landscapes reflect some form of disturbance and various stages of succession. Fire is a natural disturbance that

affects the successional stage of forests. Forest management activities do so as

well.

Distance to road, and history of disturbance—Every plot visited by

IWRIME field crews was assigned a “distance to road” category (fig. 8). Based

on this information, an estimated 24 percent of the forested area of Utah is

less than 0.5 mile from an improved road, 21 percent is between 0.5 and 1

mile, 35 percent is between 1 and 3 miles, 11 percent is between 3 and 5 miles,

and only 9 percent is greater than 5 miles from an improved road (table 10).

Field crews also make a subjective field assessment of the predominant

human or natural disturbance on each plot that impacts the entire condition.

Of Utah forest land, 74 percent was categorized as having no significant

visible disturbance. Some 8 percent had evidence of tree cutting, 5 percent

showed disease damage, 4 percent had evidence of fire, about 2 percent had

been chained, and another 2 percent had evidence of insect damage. The

remaining 5 percent of forest land had evidence of other damage, road

building, or land clearing (table 10).

Number of Trees

The composition of the forest by individual tree species is another measure

of forest diversity. Figure 9 displays the distribution of number of live trees

on Utah forest land by species. Gambel oak makes up an estimated 25 percent

of the trees in Utah; aspen and Utah juniper each 15 percent; twoneedle

pinyon, 12 percent; subalpine fir, 7 percent; lodgepole pine, 5 percent;
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 9

Figure 8—Distribution of field plots by distance to improved roads, Utah 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 10

singleleaf pinyon, 4 percent; bigtooth maple, Engelmann spruce, and Douglas-fir, each 3 percent; white fir and curlleaf mountain mahogany, each 2

percent; with traces of Rocky Mountain juniper, Rocky Mountain maple,

ponderosa pine, limber pine, cottonwood, blue spruce, and bristlecone pine

composing the remainder (table 14).

Size distribution of individual trees indicates structural diversity. Figure 10

displays number of trees on forest land by diameter class, showing many

more small than large trees. In terms of sheer numbers, 66 percent of all live

trees are less than 5 inches in diameter.

Dead trees are an important component of forest ecosystems, providing

habitat for many species of wildlife and functioning as nutrient sinks. There

Other

Ponderosa pine

Rocky Mountain maple

Rocky Mountain juniper

Curlleaf mountain mahogany

White fir

Douglas-fir

Engelmann spruce

Bigtooth maple 

Singleleaf pinyon

Lodgepole pine

Subalpine fir

Twoneedle pinyon

Utah juniper

Aspen

Gambel oak

Species

0 200 400 600 800 1,000 1,200 1,400 1,600

Million trees

Figure 9—Number of live trees on forest land by species, Utah, 1993.

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30+

Two-inch diameter class

0

750

1,500

2,250

3,000

Million trees

Figure 10—Number of live trees on forest land by 2 inch diameter class, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 11

are roughly 250 million standing dead trees (snags) of all species in Utah

(table 15). The number includes snags of all diameters and degree of decay.

Many wildlife species are dependent on snags, but the species, size, and

density of snags required vary according to the species of wildlife. Large

snags are generally scarce, making them more valuable than smaller snags.

Considering snags 11 inches in diameter or larger, Utah forests average 3.8

large snags per acre. Of the very large snags (19 inches in diameter or larger),

Utah has only about 0.6 per acre. The most abundant species of snag overall

is aspen. The most abundant species of snag in the 19 inch and larger

category is Utah juniper. The most abundant timber species of snag in the 19

inch and larger category is Engelmann spruce.

These numbers represent averages over the total forest land area. Standing dead trees were only actually tallied on 44 percent of the total forest land

area, and 61 percent of timber land area. Snags are difficult to sample

adequately (Bull and others 1990). They are fewer in number and may be less

randomly distributed than live trees—occurring in patches because of fire,

disease, insect outbreaks, and so forth.

Biomass and Volume

The total biomass in live trees in Utah forests is estimated to be 333.4

million tons. Biomass includes boles, bark, and branches of all live trees

including saplings. Biomass is presented by species in figure 11, and by

species and diameter class in table 16. The species estimated to have the

greatest total biomass is Utah juniper, with 24 percent of the total biomass

in the State.

Total volume of wood in live trees in Utah is estimated to be in excess of 15.3

billion cubic feet. This includes trees 3.0 inches in diameter at root collar and

larger for woodland species, and 5.0 inches diameter at breast height and

larger for timber species. Figure 12 shows cubic foot volume for the predominant species, table 18 shows cubic foot volume by species and owner, and

Figure 11—Oven-dry weight of biomass of all live trees by species on forest

land, Utah, 1993.

Limber pine

Other

Rocky Mountain juniper

Bigtooth maple 

Singleleaf pinyon

Curlleaf Mt. mahogany

Ponderosa pine

White fir

Lodgepole pine

Subalpine fir

Gambel oak

Engelmann spruce

Twoneedle pinyon

Douglas-fir

Aspen

Utah juniper

Species

0 10 20 30 40 50 60 70 80 90

Million tons
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 12

table 19 shows volume by species and diameter class. The species estimated

to have the most cubic foot volume is Utah juniper, with 25 percent of the

total. Biomass and volume equation sources are documented in appendix B.

Growth and Mortality

Growth, as reported here, is the average annual growth over 10 years based

on increment core measurements. It is reported for the year prior to the year

of inventory. Gross annual growth of all trees on forest land in Utah totaled

about 255 million cubic feet in 1992. Net annual growth is the difference

between gross growth and losses due to mortality. Mortality is the average

annual net volume of trees that have died in the 5 years prior to the year of

inventory. Mortality reduced gross growth by almost 50 percent, to about 129

million cubic feet of net annual growth. About 53 percent of the net annual

growth in the State occurred on lands under National Forest System

management. Aspen alone accounted for 25 percent of the net growth.

Tree mortality in Utah was high for some species and size classes (table 24).

For example, mortality exceeded growth for the year prior to the inventory

year (1993) for subalpine fir, meaning that the overall net annual growth of

subalpine fir trees is negative (table 22). The only other species with overall

negative growth is cottonwood. However, almost all species have negative

growth in some diameter classes. Insects were probably the primary cause of

death, followed by disease. Exact cause of death is often unknown, or is the

result of a combination of factors.

Risk of insect attack—The risk of damage by insects is currently an issue

of concern in Utah forests. In an attempt to assess the magnitude of the

problem, hazard ratings for risk of attack by four bark beetle species—

Douglas-fir beetle, mountain pine beetle, western pine beetle, and spruce

beetle—were adapted for use in Utah forests from Steele and others (1996)

and applied to the inventory data. Plots in spruce, spruce-fir, lodgepole pine,

Douglas-fir, and ponderosa pine forest types were assigned classes of hazard

ratings, and estimates of the area of high, moderate, or low risk of attack by

bark beetles were calculated for Utah forests.

Gambel oak

Singleleaf pinyon

Ponderosa pine

White fir

Other

Lodgepole pine

Subalpine fir

Douglas-fir

Engelmann spruce

Aspen

Twoneedle pinyon

Utah juniper

Species

0 0.5 1 1.5 2 2.5 3 3.5 4

Billion cubic feet

Figure 12—Net cubic foot volume by predominant species on all forest

land, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 13

The area of each forest type in each risk category is presented in table 12.

The table also includes the acreage of each forest type where 80 percent of the

trees are already dead, and are consequently now at low risk of attack, and

the area of each type that was not evaluated because the stands did not have

trees that met the minimum size criteria.

Of the spruce and spruce-fir types combined, 48 percent of the stands are

at moderate to high risk of attack by bark beetles. Also, 77 percent of the

lodgepole, 73 percent of the ponderosa, and 73 percent of the Douglas-fir type

are at moderate to high risk. Moderate to high risk conditions indicate the

possibility of bark beetle population increases, which in turn can cause

significant tree mortality and changes in stand structure over a short period.

Aspen decline—Information from various sources (Bartos 1995; Bartos

and Campbell 1998; USDA Forest Service 1996) indicates that aspen is

declining in much of its range. Aspen forests are unique because they

reproduce primarily by suckering from the parent root system. Often a

disturbance or dieback is necessary to stimulate regeneration of the stands.

Because these self-regenerating stands have existed for thousands of years,

even minor amounts of aspen in stands probably indicate that a site was at

one time dominated by aspen. Based on this assumption, an estimated 2.9

million acres in Utah were at some point aspen forest type. By comparison,

only about 1.4 million acres, 49 percent of the area estimated to have been

dominated by aspen currently has the required aspen stocking to be considered aspen forest type. These acreage comparisons support the hypothesis

that aspen dominance in Utah forests may be decreasing.

Understory Vegetation and Ground Cover

In addition to information about the forest overstory, the average crown

canopy cover of shrubs, forbs, and graminoids (grasslike plants) by layer, as

well as percent bare ground, were recorded for each field location. Also

recorded were the name, percent crown canopy cover, and height layer of up

to 4 species in each life-form that had 5 percent or more cover. Table 26

presents, by forest type, the life-form cover percentages, the percent bare

ground, the total number of species recorded, the most common understory

species encountered with 5 percent cover or greater, and the number of

locations and acres summarized.

The most common species occurring with 5 percent cover or greater in every

forest type were shrubs. The highest average percent bare ground is found

in the juniper woodland forest type. The highest percent average cover of

shrubs (34 percent) occurred in the ponderosa pine and Gambel oak types,

compared to the lowest average shrub cover (16 percent) in the spruce-fir

type. The highest amount of average forb cover (27 percent) was found in the

aspen forest type. Ponderosa pine had the lowest average forb cover (6

percent), followed by 7 percent in the limber/bristlecone pine and juniper

types. The highest amount of average grass cover (25 percent) was also found

in the aspen type, and the lowest (8 percent) in pinyon-juniper woodland.

The percent of ground covered by cryptobiotic soil crusts was also assessed.

Cryptobiotic soil crusts, consisting of cyanobacteria, mosses, and lichens, are

important in semiarid areas for soil stability and retention of soil moisture

and nutrients. These crusts were found to occur with more than 5 percent

cover on about 15 percent of the pinyon-juniper type, 7 percent of the juniper

type, and less than 1 percent of oak and ponderosa types in Utah.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 14

Figure 13 shows the 10 most common shrub species, and figure 14 the 10

most common herbaceous (grass and forb) species encountered with 5

percent cover or greater on Utah forest land, by the estimated percent area

of occurrence. The species to be encountered most often with 5 percent or

greater cover on all forest land is mountain snowberry, found on 19 percent

of the forest land area. Big sagebrush was the second most common with 17

percent, and Oregongrape was third with 6 percent. Cheatgrass is an exotic

annual species of concern because of its ability to out-compete native grasses

and form a monoculture in some situations. It is estimated to occur with 5

percent canopy cover or greater on 3 percent of the forest land area.

Some species, such as Gambel oak, occur on forest land in both tree and

shrub form. On Utah inventory plots where the majority of plants of a species

were tree form, they were measured as trees. On other sites where they did

not achieve tree form, they were recorded as shrubs.

Greenleaf manzanita

Utah serviceberry

Common chokecherry

Saskatoon serviceberry

Gambel oak

Common juniper

True mountain mahogany

Oregongrape

Big sagebrush

Mountain snowberry

Species

0 2 4 6 8 10 12 14 16 18 20

Percent area

Western coneflower

Blue wildrye

California brome

Ross’ sedge

Fendler’s meadowrue

Cheatgrass

Common yarrow

Elk sedge

Kentucky bluegrass

Bluebunch wheatgrass

Species

0 2 4 6 8 10 12 14 16 18 20

Percent area

Figure 13—Occurrence of 10 common shrub species on

forest land, Utah, 1993.

Figure 14—Occurrence of 10 common herbaceous species on

forest land, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 15

Highlights of Inventory Results for Nonreserved Timberland ________

Area, Volume, and Net Growth

Because of the importance of wood products, some additional summaries on

timberland not reserved from timber harvest are useful. About 31 percent

(4.9 million acres) of the forest land in Utah is nonreserved timberland.

Figure 15 presents the area of nonreserved timberland by owner group and

productivity class. Most of the lands capable of producing more than 50 cubic

feet per acre per year are on National Forests (table 49). Figure 16 shows the

distribution of timberland by owner group and stand volume class.

The total net volume of growing stock on nonreserved timberland is over 7.4

billion cubic feet, with almost 78 percent of that occurring on lands administered by National Forest System. The species comprising the greatest

percentage of growing-stock volume is aspen, with 22 percent.

The volume of sawtimber trees on nonreserved timberland in Utah is

estimated to be about 22.5 billion board feet (Scribner rule) (table 57).

Engelmann spruce and Douglas-fir species combined account for 51 percent

of the total sawtimber volume. Figure 17 shows sawtimber volume by species

for nonreserved timberland.

NFS Other public Private

Owner group

0

200

400

600

800

1,000

Thousand acres

Stand volume per acre (board feet)

<1,500

1,500-4,999

5,000-9,999

10,000+

Figure 16—Distribution of nonreserved timberland

by owner group and stand volume class, Utah, 1991.

NFS Other public Private

Owner group

0

0.5

1

1.5

2

2.5

Million acres

Productivity class

85+

50-84

20-49

0-19

Figure 15—Area of nonreserved timberland by

owner group and productivity class, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 16

Net annual growth of growing-stock trees on nonreserved timberland

totaled almost 78 million cubic feet (table 68). Figure 18 shows gross growth,

mortality, and removals of growing-stock volume for selected species on

nonreserved timberland.

Removals

The net volume of growing-stock trees removed from the inventory by harvesting, cultural operations, land clearing, and changes in land use is known as

removals. Removals include both the volume processed and the volume harvested

or killed but not utilized. Removals as reported here are based on data from 1

year—1992. Over 9.4 million cubic feet of wood, exclusive of land clearing volume

and including 40.5 million board feet (Scribner rule), were removed from Utah’s

nonreserved timberland in 1992 (numbers modified from McLain 1997). Figure 19

shows volume harvested by product and owner group (tables 80-82). Almost 93

percent of the removals were for timber products, 2 percent were for fuelwood, and

over 5 percent were not utilized and were left in the woods as logging residues.

Sawlogs dominated products harvested and accounted for 82 percent of

removals. Fiberwood, which in Utah is manufactured into excelsior, made up

Aspen

True firs

Douglas-fir

Spruce

Lodgepole pine

Ponderosa pine

Selected species

0 10 20 30 40 50

Million cubic feet

Gross growth

Mortality

Removals

Figure 18—Gross growth, mortality, and removals of selected species of growing-stock on nonreserved timberland,

Utah, 1992.

Bristlecone pine

Cottonwood

Blue spruce

Limber pine

White fir

Lodgepole pine

Ponderosa pine

Aspen 

Subalpine fir

Douglas-fir

Engelmann spruce

Species

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Billion board feet

Figure 17—Sawtimber volume by species for nonreserved

timberland, Utah, 1993.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 17

6 percent of removals. Posts and poles made up just over 2 percent of removals,

as did house logs.

Spruce accounted for 40 percent and lodgepole pine for 32 percent of the

volume removed (table 80) even though each is only 20 and 10 percent,

respectively, of the growing-stock volume inventory on nonreserved timberland (table 58). National Forests supplied 70 percent of the volume removed,

and nonindustrial private owners supplied 23 percent. The other 7 percent

came from other public land.

Components of Change

Removals and mortality are both components of change that reduce the amount

of growing stock on Utah’s nonreserved timberlands. Figure 20 shows net annual

growth compared to removals. Because growth is annual, based on an average over

10 years, and removals data are collected for 1 year, figure 20 does not necessarily

imply a trend. What it does illustrate is that both lodgepole pine and true firs had

more wood volume removed in 1 year (1992) than the average annual net growth.

This result is due mostly to the high mortality in the two species. Total growingstock volume removed was only 12 percent of total net annual growth of all species

of growing-stock trees on nonreserved timberland in Utah.

Figure 20—Net annual growth compared to removals by species on nonreserved timberland, Utah,

1992. Cottonwood has a small negative net growth.

Cottonwood

True firs

Lodgepole pine

Ponderosa pine

Spruce

Douglas-fir

Aspen

Species

0 5 10 15 20 25 30 35

Billion cubic feet

Net growth

Removals

Sawlogs Fiberwood Posts & 

poles

House 

logs

Fuelwood Logging 

residue

Products

0

1

2

3

4

5

6

Million cubic feet

NFS

Other

Figure 19—Volume harvested from nonreserved

timberland by product and owner group, Utah, 1992.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 18

Standard Forest Inventory and Analysis Terminology ______________

Basal area—The cross-sectional area of a tree expressed in square feet. For

timber species the calculation is based on diameter at breast height (d.b.h.);

for woodland species it is based on diameter at root collar (d.r.c.).

Biomass—Oven dry weight of trees at least 1 inch in diameter. Includes

boles, bark, and branches.

Christmas tree grade—Pinyon species are classified as Christmas trees

using the following guidelines:

Premium—Excellent conical form with no gaps in branches and a

straight bole.

Standard—Good conical form with small gaps in branches and bole

slightly malformed.

Utility—Conical in form with branches missing and bole bent or malformed.

Cull—Not meeting one of the above classifications or over 12 feet in

height.

Cord—A stack of wood equivalent to 128 cubic feet of wood and air space

having standard dimensions of 4 by 4 by 8 feet. An average conversion

factor of 75 cubic feet of solid wood per cord is used.

Crown cover—Percentage of the ground surface covered by a vertical

projection of tree crowns. Synonymous with canopy cover.

Cull trees—Live timber species trees that are unmerchantable now or

prospectively (see Rough trees and Rotten trees).

Cull volume—Portions of the volume in a timber species tree that are not

usable for wood products because of rot, missing material, dead material,

or other cubic-foot defect.

Diameter at breast height (d.b.h.)—Diameter of the stem measured 4.5

feet above the ground.

Diameter at root collar (d.r.c.)—Diameter equivalent for a woodland

species, taken at the point nearest the ground line that represents the basal

area of the tree stem or stems.

Diameter classes—Tree diameters, either d.b.h. or d.r.c., grouped into 2

inch classes, with the even inch the midpoint for the class.

Diameter outside bark (d.o.b.)—Tree diameter measurement taken over

the bark.

Distance to road—The distance from a sample site to the nearest improved

road, which could be accessed from the site. Improved roads are permanent,

maintained roads.

Excelsior fiberwood—A material of curled shreds of wood used for stuffing

or packing.

Farmer/rancher-owned lands—Lands owned by a person who operates a

farm or a ranch and who either does the work or directly supervises the

work.

Fenceposts—Juniper and oak species are evaluated for post potential using

the following criteria:
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 19

Line post—A 7-foot minimum length with a 5- to 7-inch diameter butt,

2.5-inch minimum small-end diameter, and reasonably straight and

solid.

Corner post—An 8-foot minimum length with a 7- to 9-inch diameter

butt, 2.5-inch minimum small-end diameter, and reasonably straight

and solid.

Forest industry lands—Lands owned by companies or individuals operating a primary wood-processing plant, either within the State’s boundaries

or in nearby States or Provinces.

Forest lands—at least 10 percent stocked by forest trees of any size,

including lands that formerly had such tree cover and that will be regenerated naturally or artificially. The minimum area for classification of

forest land is 1 acre. Roadside, streamside, and shelterbelt strips of trees

must have a crown width of at least 120 feet to qualify as forest land.

Unimproved roads and trails, streams, and clearings in forest areas are

classified as forest if they are less than 120 feet wide.

Forest trees—Woody plants having a well-developed stem or stems, usually

more than 12 feet tall at maturity, with a generally well-defined crown.

Forest type—A classification of forest land based on and named for the tree

species presently forming a plurality of live-tree stocking.

Gross annual growth—The average annual increase in the net volume of

trees.

Gross volume in board feet—The board-foot volume in the sawlog portion

of a sawtimber tree. Volume is computed from a 1 foot stump to a minimum

sawlog top of 7 inches d.o.b. for softwoods, or 9 inches d.o.b. for hardwoods;

or to the point where the central stem breaks into limbs.

Growing-stock trees—Live timber species trees meeting specified standards of quality and vigor; excludes cull trees.

Growing-stock volume—Net cubic-foot volume in live poletimber-size and

sawtimber-size growing-stock trees from a 1 foot stump to a minimum 4

inch top (of central stem) outside bark or to the point where the central stem

breaks into limbs.

Growth—See Net annual growth.

Hardwood trees—Trees that are usually broad leaved and deciduous.

Indian Trust—Indian lands held in trust by the Federal Government for a

Native American tribe or individual.

Industrial wood—All commercial roundwood products except fuelwood.

Land area—The area of dry land and land temporarily or partially covered

by water such as marshes, swamps, river flood plains, streams, sloughs,

estuaries, and canals less than 120 feet wide; and lakes, reservoirs, and

ponds less than 1 acre.

Logging residue—The unused portions within the merchantable sections

of growing-stock trees cut or killed during logging.

Mill or plant residue—Wood material from mills or other primary manufacturing plants that is not utilized for the mill’s or plant’s primary product.

Mill or plant residue includes bark, slabs, edgings, trimmings, miscuts,
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 20

sawdust, and shavings. Much of the mill and plant residue is used as fuel

and as the raw material for such products as pulp, pelletized fuel, fiberwood,

mulch, and animal bedding. Mill or plant residue includes bark and the

following components:

Coarse residue—Wood material suitable for chipping, such as slabs,

edgings, and trim.

Fine residue—Wood material unsuitable for chipping, such as sawdust

and shavings.

Miscellaneous Federal lands—Lands administered by Federal agencies

other than the Forest Service, U.S. Department of Agriculture, or the

Bureau of Land Management, U.S. Department of the Interior.

Mortality—The net volume of trees that have died during a specified period.

National Forest lands—Public lands administered by the Forest Service,

U.S. Department of Agriculture.

Net annual growth—Gross annual growth minus average annual mortality.

Net dead volume—For woodland species, net volume of dead trees plus net

volume of dead material in live trees.

Net volume in board feet—The gross board-foot volume in the sawlog

portion of growing-stock trees, less deductions for cull volume.

Net volume in cubic feet—For timber species, gross cubic-foot volume in

the merchantable portion of trees, less deductions for cull volume. Volume

is computed for the merchantable stem from a 1 foot stump to a minimum

4 inch top d.o.b., or to the point where the central stem breaks into limbs.

For woodland species, gross cubic-foot volume less deductions for dead,

missing, and rotten material. Volume is calculated for trees 3.0 inches and

larger d.r.c. to a stem or branch top of 1.5 inches d.o.b.

Nonforest lands—Lands that do not currently qualify as forest land.

Nonindustrial private—All private ownerships except forest industry.

Nonstocked areas—Forest land less than 10 percent stocked with live

trees.

Other private lands—Privately owned lands other than forest industry or

Indian Trust.

Other public lands—Public lands administered by agencies other than the

Forest Service, U.S. Department of Agriculture. Includes lands administered by other Federal, State, county, and local government agencies,

including lands leased by these agencies for more than 50 years.

Other removals—The net volume of growing-stock trees removed from the

inventory by cultural operations, such as timber-stand improvement, by

land clearing, and by changes in land use, such as a shift to wilderness.

Poletimber stands—Stands at least 10 percent stocked with growing-stock

trees, in which half or more of the stocking is sawtimber or poletimber trees

or both, with poletimber stocking exceeding that of sawtimber (see Stocking).

Poletimber trees—Live timber species trees at least 5 inches d.b.h., but

smaller than sawtimber.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 21

Potential growth—The average net annual cubic-foot growth per acre at

culmination of mean annual growth attainable in fully stocked natural

stands.

Primary wood-processing plants—Plants using roundwood products,

such as sawlogs, pulpwood bolts, and veneer logs.

Productivity—Potential yield capability of a stand (in cubic feet per acre

per year) calculated here as a function of site index.

Productivity class—A classification of forest land that reflects biological

potential. For timberlands, the index used is the potential net annual

growth at culmination of mean annual increment in fully stocked natural

stands. Woodland is classified as “high site” where sustained wood production is likely, or as “low site” where the continuous production of wood is

unlikely.

Removals—The net volume of growing-stock trees removed from the inventory by harvesting, cultural operations, land clearing, and changes in land

use.

Reserved forest land—Forest land withdrawn from tree utilization through

statute or administrative designation.

Residue—See Mill or plant residue.

Rotten trees—Live poletimber or sawtimber trees with more than 67

percent of the total cubic-foot volume cull and with more than half of the cull

volume attributable to rotten or missing material.

Rough trees—Live poletimber or sawtimber trees with more than 67

percent of the total cubic-foot volume cull and with less than half of the cull

volume attributable to rotten or missing material.

Roundwood—Logs, bolts, or other round sections cut from trees.

Saplings—Live timber species trees 1 to 4.9 inches d.b.h. or woodland tree

species 1 to 2.9 inches d.r.c.

Sapling and seedling stands—Timberland stands at least 10 percent

stocked on which more than half of the stocking is saplings or seedlings, or

both.

Sawlog portion—That part of the bole of sawtimber trees between a 1 foot

stump and the sawlog top.

Sawlog top—The point on the bole of sawtimber trees above which a sawlog

cannot be produced. The minimum sawlog top is 7 inches d.o.b. for

softwoods and 9 inches d.o.b. for hardwoods.

Sawtimber stands—Stands at least 10 percent stocked with growing-stock

trees, with half or more of total stocking in sawtimber or poletimber trees,

and with sawtimber stocking at least equal to poletimber stocking.

Sawtimber trees—Live timber species trees meeting regional size and

defect specifications. Softwood trees must be at least 9 inches d.b.h. and

hardwood trees 11 inches d.b.h.

Sawtimber volume—Net volume in board feet of the sawlog portion of live

sawtimber trees.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 22

Seedlings—Established live timber species trees less than 1 inch d.b.h. or

woodland species less than 1 inch d.r.c.

Site index—Expected height (in feet) of a tree on a site at age 50 (or 80 for

aspen and cottonwood) calculated from height-to-age equations. Trees

selected for site index calculations are dominant or codominant within the

stand, age 30 to 200 years, showing high vigor.

Snags—Standing dead trees.

Softwood trees—Coniferous trees that are usually evergreen and have

scalelike or linear needlelike leaves.

Standard error—An expression of the degree of confidence that can be

placed on an estimated total or average obtained by statistical sampling

methods. Standard errors do not include technique errors that occur in

photo work, field measurements, or compilation. The standard established

in FSH 4809.11 for commercial forest land is 3 percent sampling error at

1 million acres, and 10 percent at 1 billion cubic feet of growing stock

volume. The standard for noncommercial forest land is 10 percent sampling error at 1 million acres.

Stand-size classes—A classification of forest land based on the predominant size of trees present (see Sawtimber stands, Poletimber stands, and

Sapling and seedling stands).

Stocking—An expression of the extent to which growing space is effectively

utilized by present or potential growing-stock trees.

Stocking condition—A categorization of timberland reflecting the degree

to which the site is being utilized by growing-stock trees and other

conditions affecting current and prospective timber growth (see Stocking).

The concept was adapted for woodland, with basal area classes used as

stocking condition surrogates:

Overstocked—For timberland, sites at least 60 percent stocked with

growing-stock trees, but overstocked with live trees, including live cull

trees. For woodland, basal area greater than 160 square feet.

Fully stocked—For timberland, sites at least 60 percent stocked with

growing-stock trees and not overstocked. For woodland, between 111

and 160 square feet basal area per acre.

Medium to fully stocked—For timberland, sites 35 to 60 percent stocked

with growing-stock trees. Includes areas where other trees, inhibiting

vegetation, or surface conditions prevent occupancy by growing-stock

trees. For woodland, between 61 and 110 square feet basal area per

acre.

Poorly stocked—For timberland, sites less than 35 percent stocked with

growing-stock trees. For woodland, between 1 and 60 square feet basal

area per acre.

Nonstocked—For timberland, sites less than 10 percent stocked with

growing-stock trees. For woodland, less than 1 square foot basal area

per acre.

Timberland—Forest land where timber species make up at least 10 percent

stocking.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 23

Timber species—Tree species traditionally used for industrial wood products. In the Interior West States, these include aspen, cottonwood, and

paper birch hardwood species, and all softwood species except pinyon and

juniper.

Timber stand improvement—Treatments such as thinning, pruning,

release cutting, girdling, weeding, or poisoning of unwanted trees to

improve growing conditions for the remaining trees.

Upper-stem portion—That part of the main stem or fork of sawtimber

trees above the sawlog top to a minimum top diameter of 4 inches outside

bark or to the point where the main stem or fork breaks into limbs.

Water—Streams, sloughs, estuaries, and canals more than 120 feet wide,

and lakes, reservoirs, and ponds larger than 1 acre at mean high water

level.

Wilderness—An area of undeveloped land currently included in the Wilderness System, managed to preserve its natural conditions and retain its

primeval character and influence.

Woodland—Forest land where timber species make up less than 10 percent

stocking.

Woodland average stand diameter class—A woodland stand classification based on the quadratic mean diameter (the diameter corresponding to

the tree of average basal area d.r.c.) of the woodland component of the

stand.

Woodland profile—A classification of woodland that combines slope,

volume per acre, site class, and tree crown cover.

Woodland species—Tree species not usually converted into industrial

wood products. Common uses are fuelwood, fenceposts, and Christmas

trees.

References______________________________________________________

Bartos, Dale L. 1995. Aspen problem definition. Unpublished paper

on file at Logan, UT: U.S. Department of Agriculture, Forest Service,

Intermountain Research Station, Forestry Sciences Laboratory.

Bartos, Dale L.; Campbell, Robert B. 1998. Decline of quaking aspen

in the Interior West—examples from Utah. Rangelands 20(1): 15-22.

Brown, Mark J.; O’Brien, Renee A. 1997. Forest resource statistics for

northern Utah, 1993. Resour. Bull. INT-RB-91. Ogden, UT: U.S.

Department of Agriculture, Forest Service, Intermountain Research Station. 53 p.

Bull, Evelyn L.; Holthausen, Richard S.; Marx, David, B. 1990. How to

determine snag density. Western Journal of Applied Forestry. 5: 56-58.

Chojnacky, David C. 1984. Volume and biomass for curlleaf

cercocarpus in Nevada. Res. Pap. INT-332. Ogden, UT: U.S.

Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 8 p.

Chojnacky, David C. 1985. Pinyon-juniper volume equations for the

central Rocky Mountain states. Res. Pap. INT-339. Ogden, UT:

U.S. Department of Agriculture, Forest Service, Intermountain

Forest and Range Experiment Station. 27 p.

Chojnacky, David C. 1992. Estimating volume and biomass for

dryland oak species. Pages 155-161 in: Ecology and management

of oak and associated woodlands: perspectives in the southwestern United States and northern Mexico; 1992 April 27-30; Sierra

Vista, Arizona. GTR-RM-218. Ft. Collins, CO: U.S. Department

of Agriculture, Forest Service, Rocky Mountain Forest and Range

Experiment Station.

Chojnacky, David C. 1994. Volume equations for New Mexico’s

pinyon-juniper dryland forests. Res. Pap. INT-471. Ogden, UT:

U.S. Department of Agriculture, Forest Service, Intermountain

Research Station. 10 p.

Chojnacky, David C.; Moisen, Gretchen G. 1993. Converting wood

volume to biomass for pinyon and juniper. Res. Note INT-411.

Ogden, UT: U.S. Department of Agriculture, Forest Service,

Intermountain Research Station. 5 p.

Cochran, William G. 1963. Sampling Techniques. 2nd ed. New York:

John Wiley and Sons. 413 p.

Edminster, Carlton B.; Beeson, Robert T.; Metcalf, Gary E. 1980.

Volume tables and point-sampling factors for ponderosa pine in

the Front Range of Colorado. Res. Pap. RM-218. Ft. Collins, CO:

U.S. Department of Agriculture, Forest Service, Rocky Mountain

Forest and Range Experiment Station. 14 p.

Edminster, Carlton B.; Mowrer, Todd H.; Hinds, Thomas E. 1982.

Volume tables and point-sampling factors for aspen in Colorado.

Res. Pap. RM-232. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 16 p.

Edwards, T. C. Jr.; Homer, C. G.; Bassett, S. D.; Falconer, A.; Ramsey,

R. D.; Wright, D. W. 1995. Utah Gap Analysis: an environmental

information system. Technical Report 95-1, Utah Cooperative Fish

and Wildlife Research Unit, Utah State University, Logan, UT.

1138 p. + 2 CD-ROMS.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 24

Homer, C. H.; Ramsey, R. D.; Edwards, T. C. Jr.; and Falconer, A. 1997.

Landscape cover-type modelling using a multi-scene TM mosaic.

Photogrammetric Engineering and Remote Sensing 63:59-67.

Kemp, Paul D. 1958. Volume tables. Unpublished report on file at:

U.S. Department of Agriculture, Forest Service, Intermountain

Research Station, Interior West Resource, Inventory, Monitoring, and Evaluation Program, Ogden, UT.

Mauk, Ronald L.; Henderson, Jan A. 1984. Coniferous forest habitat

types of northern Utah. Gen. Tech. Rep. INT-170. Ogden, UT: U.S.

Department of Agriculture, Forest Service, Intermountain Forest

and Range Experiment Station. 89 p.

McLain, William H. 1997. Logging utilization—Utah, 1993. Resour.

Bull. INT-RB-90. Ogden, UT: U.S. Department of Agriculture,

Forest Service, Intermountain Research Station. 9 p.

Mueggler, Walter F. 1988. Aspen community types of the Intermountain region. Gen. Tech. Rep. INT-250. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research

Station. 135 p.

Myers, Clifford A. 1964. Volume tables and point-sampling factors

for lodgepole pine in Colorado and Wyoming. Res. Pap. RM-6. Ft.

Collins, CO: U.S. Department of Agriculture, Forest Service,

Rocky Mountain Forest and Range Experiment Station. 16 p.

Myers, Clifford A.; Edminster, Carleton B. 1972. Volume tables and

point-sampling factors for Engelmann Spruce in Colorado and

Wyoming. Res. Pap. RM-95. Ft. Collins, CO: U.S. Department of

Agriculture, Forest Service, Rocky Mountain Forest and Range

Experiment Station. 23 p.

O’Brien, Renee A. 1996. Forest resources of northern Utah ecoregions.

Resour. Bull. INT-RB-87. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 34 p.

Steele, Robert: Williams, Ralph E.; Weatherby, Julie C.; Reinhardt,

Elizabeth D.; Hoffman, James T.; Thier, R.W. 1996. Stand hazard

rating for central Idaho forests. Gen. Tech. Rep. INT-GTR-332.

Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 29 p.

U.S. Bureau of the Census. 1991. Statistical Abstract of the United

States (111th edition). Washington, DC: U.S. Department of

Commerce.

U.S. Department of Agriculture, Forest Service. 1994. Utah forest

survey field procedures, 1994-1995. Unpublished field guide on file

at: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Forestry Sciences Laboratory, Interior

West Resource Inventory, Monitoring, and Evaluation Program,

Ogden, UT. 232 p.

U.S. Department of Agriculture, Forest Service. 1996. Properly

functioning condition. Draft report on file at Ogden, UT: U.S.

Department of Agriculture, Forest Service, Intermountain Region.

Van Hooser, Dwane D.; Chojnacky, David C. 1983. Whole tree

volume estimates for the Rocky Mountain states. Res. Bull. INT29. Ogden, UT: U.S. Department of Agriculture, Forest Service,

Intermountain Forest and Range Experiment Station. 69 p.

Van Hooser, Dwane D.; Green, Alan W. 1983. Utah’s forest resources,

1978. Resour. Bull. INT-30. Ogden, UT: U.S. Department of

Agriculture, Forest Service, Intermountain Forest and Range

Experiment Station. 58 p.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 25

Appendix A: Common and Scientific Plant Names __________________

Tree Species

Aspen (Populus tremuloides)

Bigtooth maple (Acer grandidentatum)

Blue spruce (Picea pungens)

Bristlecone pine (Pinus aristata)

Cottonwood (Populus sp.)

Curlleaf mountain mahogany (Cercocarpus ledifolius)

Douglas-fir (Pseudotsuga menziesii)

Engelmann spruce (Picea engelmannii)

Gambel oak (Quercus gambelii)

Limber pine (Pinus flexilis)

Lodgepole pine (Pinus contorta)

Paper birch (Betula papyrifera)

Ponderosa pine (Pinus ponderosa)

Rocky Mountain juniper (Juniperus scopulorum)

Rocky Mountain maple (Acer glabrum)

Singleleaf pinyon (Pinus monophylla)

Subalpine fir (Abies lasiocarpa)

True mountain mahogany (Cercocarpus montanus)

Twoneedle pinyon (Pinus edulis)

Utah juniper (Juniperus osteosperma)

White fir (Abies concolor)

Yew (Taxus sp.)

Shrub Species

Big sagebrush (Artemisia tridentata)

Common chokecherry (Prunus virginiana)

Common juniper (Juniperus communis)

Gambel oak (Quercus gambelii)

Gooseberry currant (Ribes montigenum)

Greenleaf manzanita (Arctostaphylos patula)

Grouse whortleberry (Vaccinium scoparium)

Mountain snowberry (Symphoricarpos oreophilus)

Oregongrape (Mahonia repens)

Saskatoon serviceberry (Amelanchier alnifolia)

Skunkbush sumac (Rhus trilobata)

True mountain mahogany (Cercocarpus montanus)

Utah serviceberry (Amelanchier utahensis)

Forb Species

Common yarrow (Achillea millefolium)

Fendler’s meadowrue (Thalictrum fendleri)

Western coneflower (Rudbeckia occidentalis)
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 26

Grass Species

Blue wildrye (Elymus glaucus)

Bluebunch wheatgrass (Pseudoroegneria spicata)

California brome (Bromus carinatus)

Cheatgrass (Bromus tectorum)

Elk sedge (Carex geyeri)

Kentucky bluegrass (Poa pratensis)

Ross’ sedge (Carex rossii)

Appendix B: Volume and Biomass Equation Sources ________________

Volume

Chojnacky (1985) was used for oak, maple, and mountain mahogany

volume estimation.

Chojnacky (1994) was used for pinyon and juniper volume estimation.

Edminster and others (1980) was used for ponderosa pine volume

estimation.

Edminster and others (1982) was used for aspen volume estimation.

Kemp (1958) was used for cottonwood volume estimation.

Myers (1964) was used for lodgepole, bristlecone, and limber pine volume

estimation.

Myers and Carleton (1972) was used for Douglas-fir, subalpine fir, white

fir, Engelmann spruce, and blue spruce volume estimation.

Biomass

Chojnacky (1984) was used for mountain mahogany biomass estimation.

Chojnacky (1992) was used for oak and maple biomass estimation.

Chojnacky and Moisen (1993) was used for pinyon and juniper biomass

estimation.

Van Hooser and Chojnacky (1983) was used for all timber species biomass

estimation.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 27 Table 1−Total area by ownership class and land class, Utah, 1993. Land class Nonreserved Reserved Total Forest land Total Forest Forest Ownership class Timberland Woodland forest land Nonforest Water Total land Nonforest Water Total land Nonforest Water Total area - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Land Public National Forest 3,342,185 1,833,474 5,175,659 2,083,271 8,073 7,267,003 466,387 363,571 − 829,958 5,642,046 2,446,842 8,073 8,096,961 Bureau of Land Management 340,653 5,726,667 6,067,320 16,716,823 − 22,784,143 4,097 22,533 − 26,630 6,071,417 16,739,356 − 22,810,773 National Park − − − − − − 237,703 1,698,186 6,563 1,942,453 237,703 1,698,186 6,563 1,942,453 Miscellaneous Federal 241 1,022 1,263 38,910 − 40,174 − 1,778,623 − 1,778,623 1,263 1,817,533 − 1,818,797 State 223,485 772,813 996,298 3,137,406 − 4,133,704 13,341 77,812 − 91,153 1,009,640 3,215,218 − 4,224,857 County and municipal 1,072 4,698 5,770 14,492 − 20,261 − − − − 5,770 14,492 − 20,261 Total public 3,907,636 8,338,675 12,246,311 21,990,901 8,073 34,245,285 721,528 3,940,725 6,563 4,668,817 12,967,840 25,931,626 14,636 38,914,102 Private Indian Trust 82,628 397,193 479,821 1,738,394 6,580 2,224,795 47,091 32,623 − 79,715 526,913 1,771,017 6,580 2,304,510 Other private 878,757 1,338,772 2,217,529 8,956,179 39,296 11,213,004 1,525 12,245 − 13,770 2,219,054 8,968,424 39,296 11,226,774 Total private 961,384 1,735,965 2,697,349 10,694,573 45,876 13,437,799 48,616 44,868 − 93,485 2,745,967 10,739,441 45,876 13,531,284 Total land area 4,869,021 10,074,640 14,943,661 32,685,474 53,949 47,683,084 770,146 3,985,593 6,563 4,762,302 15,713,806 36,671,067 60,512 52,445,386 Watera −−−− 1,893,255 1,893,255 − − − − − − 1,893,255 1,893,255 Total land and waterb 4,869,021 10,074,640 14,943,661 32,685,474 1,947,205 49,576,339 770,146 3,985,593 6,563 4,762,302 15,713,806 36,671,067 1,953,768 54,338,641

a1990 Decennial Census as updated by IWRIME.bSource: U.S. Bureau of the Census, 1991. 

Forest Inventory and Analysis Tables _____________________________

Total Forest Land
28 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 2−Percent standard error for area, volume, growth, and mortality on forest land, Utah.

Percent

 Area Volume standard

Land class Attribute (acres) (thousand) error

Forest landa Area, 1993 15,713,806 ±1.1

All live, Net volume (cubic feet), 1993 15,376,060 ±1.8

All live, Annual growth (cubic feet), 1992 128,692 ±7.6

All live, Annual mortality (cubic feet), 1992 126,225 ±7.1

Nonreserved forest land:

Timberland Area, 1993 4,869,021 ±1.9

Net volume, 1993:

Growing stock (cubic feet) 7,418,858 ±2.8

Sawtimber - International 1⁄4-inch rule (board feet) 26,262,173 ±3.3

Sawtimber - Scribner rule (board feet) 22,457,992 ±3.3

Net annual growth, 1992:

Growing stock (cubic feet) 77,975 ±10.5

Sawtimber - International 1⁄4-inch rule (board feet) 340,555 ±11.8

Sawtimber - Scribner rule (board feet) 287,010 ±12.1

Annual mortality, 1992:

Growing stock (cubic feet) 104,134 ±6.9

Sawtimber - International 1⁄4-inch rule (board feet) 381,274 ±7.9

Sawtimber - Scribner rule (board feet) 326,155 ±8.0

Woodland Area, 1993 10,074,640 ±1.7

All live, Net volume (cubic feet), 1993 6,375,684 ±2.8

All live, Annual growth (cubic feet), 1992 45,974 ±4.5

All live, Annual mortality (cubic feet), 1992 6,273 ±21.6

Reserved forest land:

Timberland Area, 1993 490,124 ±5.1

Net volume, Growing stock (cubic feet), 1993 923,707 ±8.3

Annual growth, Growing stock (cubic feet), 1992 −3 ±100.0

Annual mortality, Growing stock (cubic feet), 1992 14,543 ±36.1

Woodland Area, 1993 280,022 ±13.2

All live, Net volume (cubic feet), 1993 154,032 ±18.7

All live, Annual growth (cubic feet), 1992 854 ±22.7

All live, Annual mortality (cubic feet), 1992 85 ±98.5

aIncludes cull volume on timberland that is not reported in growing stock numbers. 

Area
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 29 Table 3−Area of forest land by forest type, owner group, and land class, Utah, 1993. Owner group National Forest Other public Nonindustrial private All owners Forest type Nonreserved Reserved Total Nonreserved Reserved Total Nonreserved Reserved Total Nonreserved Reserved Totala - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Aspen 841,636 6,583 848,220 102,846 − 102,846 465,133 11,773 476,906 1,409,616 18,356 1,427,973 Blue spruce 20,820 − 20,820 − − − − − − 20,820 − 20,820 Cottonwood 7,092 − 7,092 5,018 − 5,018 16,688 − 16,688 28,798 − 28,798 Douglas-fir 471,894 68,041 539,934 310,635 13,829 324,463 246,343 17,659 264,002 1,028,871 99,529 1,128,400 Engelmann spruce 318,340 106,329 424,669 − − − 27,898 − 27,898 346,238 106,329 452,567 Juniper 139,388 17,040 156,429 915,004 8,893 923,897 302,075 − 302,075 1,356,467 25,933 1,382,400 Limber pine 58,253 12,151 70,404 2,321 − 2,321 − − − 60,574 12,151 72,725 Lodgepole pine 352,686 111,824 464,509 − − − 29,359 − 29,359 382,044 111,824 493,868 Maple woodland 46,292 − 46,292 7,335 − 7,335 82,877 − 82,877 136,504 − 136,504 Mountain mahogany 152,863 5,214 158,078 89,145 − 89,145 83,191 − 83,191 325,200 5,214 330,414 Oak 273,794 − 273,794 65,003 5,056 70,059 395,183 − 395,183 733,980 5,056 739,036 Pinyon-juniper 1,221,136 37,132 1,258,268 5,428,712 187,502 5,616,214 872,640 19,184 891,825 7,522,489 243,819 7,766,307 Ponderosa pine 387,700 10,952 398,652 103,605 29,868 133,473 62,312 − 62,312 553,617 40,819 594,436 Spruce-fir 602,178 52,950 655,128 7,396 4,939 12,336 68,387 − 68,387 677,962 57,889 735,851 White fir 281,586 38,171 319,757 33,630 5,056 38,685 45,265 − 45,265 360,481 43,227 403,707 All typesa 5,175,659 466,387 5,642,046 7,070,652 255,141 7,325,793 2,697,350 48,617 2,745,966 14,943,661 770,145 15,713,806 aOn this and all subsequent tables, totals may vary due to rounding.
30 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 4−Area of forest land by forest type, stand-size class, and productivity class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen

Sawtimber − 6,728 80,709 177,680 2,997 268,114

Poletimber − 10,107 137,289 617,666 86,301 851,363

Sapling/seedling − 4,173 33,341 212,832 34,362 284,707

Nonstocked − − − 20,767 3,023 23,790

Total − 21,008 251,339 1,028,944 126,683 1,427,973

Blue spruce 

Sawtimber − − 14,220 − − 14,220

Poletimber −−− 3,069 − 3,069

Sapling/seedling −−− 3,531 − 3,531

Nonstocked − − − − − −

Total − − 14,220 6,600 − 20,820

Cottonwood 

Sawtimber −−− 20,756 4,491 25,247

Poletimber −−−−−−

Sapling/seedling − − 3,550 − − 3,550

Nonstocked − − − − − −

Total − − 3,550 20,756 4,491 28,798

Douglas-fir 

Sawtimber 4,173 41,288 304,234 468,573 − 818,268

Poletimber − − 32,992 50,378 − 83,370

Sapling/seedling − − 29,241 76,946 5,044 111,231

Nonstocked − − 9,582 105,948 − 115,530

Total 4,173 41,288 376,049 701,846 5,044 1,128,400

Engelmann spruce 

Sawtimber − 50,143 129,756 242,819 − 422,718

Poletimber − − 7,082 3,300 − 10,383

Sapling/seedling − − 3,300 16,166 − 19,466

Nonstocked − − − − − −

Total − 50,143 140,138 262,286 − 452,567

Juniper 

Sawtimber −−−− 734,100 734,100

Poletimber −−−− 632,438 632,438

Sapling/seedling −−−− 5,609 5,609

Nonstocked − − − − 10,253 10,253

Total −−−− 1,382,400 1,382,400

Limber pine 

Sawtimber −−− 52,148 6,093 58,241

Poletimber −−− 5,577 − 5,577

Sapling/seedling −−−−−−

Nonstocked − − − 5,905 3,003 8,908

Total −−− 63,629 9,096 72,725

Lodgepole pine 

Sawtimber − − 23,702 235,180 − 258,882

Poletimber − − 2,719 133,589 6,115 142,423

Sapling/seedling − − 3,069 83,125 6,369 92,563

Nonstocked − − − − − −

Total − − 29,489 451,894 12,484 493,868

Maple woodland 

Sawtimber −−−− 7,341 7,341

Poletimber −−−− 87,037 87,037

Sapling/seedling −−−− 42,127 42,127

Nonstocked − − − − − −

Total −−−− 136,504 136,504

(con.)
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 31

Table 4 (Con.)

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Mountain mahogany 

Sawtimber −−−− 74,101 74,101

Poletimber −−−− 248,713 248,713

Sapling/seedling −−−− 7,600 7,600

Nonstocked − − − − − −

Total −−−− 330,414 330,414

Oak 

Sawtimber −−−−−−

Poletimber −−−− 447,637 447,637

Sapling/seedling −−−− 291,398 291,398

Nonstocked − − − − − −

Total −−−− 739,036 739,036

Pinyon-juniper 

Sawtimber −−−− 4,254,896 4,254,896

Poletimber −−−− 3,330,888 3,330,888

Sapling/seedling −−−− 155,564 155,564

Nonstocked − − − − 24,959 24,959

Total −−−− 7,766,307 7,766,307

Ponderosa pine 

Sawtimber − − 97,270 319,643 − 416,914

Poletimber − − 3,020 20,639 − 23,659

Sapling/seedling − − 9,816 28,943 − 38,759

Nonstocked − − − 115,105 − 115,105

Total − − 110,106 484,330 − 594,436

Spruce-fir 

Sawtimber 2,748 90,930 246,265 174,754 3,542 518,239

Poletimber − − 55,535 59,091 − 114,626

Sapling/seedling − − 15,784 66,692 10,636 93,112

Nonstocked − − − 9,873 − 9,873

Total 2,748 90,930 317,583 310,411 14,178 735,851

White fir 

Sawtimber − 44,868 189,084 120,112 − 354,065

Poletimber − − 6,583 − − 6,583

Sapling/seedling − − 20,470 14,055 − 34,525

Nonstocked − − 8,534 − − 8,534

Total − 44,868 224,672 134,167 − 403,707

All types 

Sawtimber 6,921 233,957 1,085,240 1,811,667 5,087,561 8,225,346

Poletimber − 10,107 245,220 893,309 4,839,129 5,987,765

Sapling/seedling − 4,173 118,571 502,291 558,709 1,183,743

Nonstocked − − 18,117 257,598 41,237 316,952

Total 6,921 248,237 1,467,147 3,464,864 10,526,637 15,713,806

 
32 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 5−Area of National Forest System forest land by forest type, stand-size class, and

productivity class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen

Sawtimber − 6,728 39,578 138,585 2,997 187,887

Poletimber − 1,900 113,709 342,610 21,094 479,313

Sapling/seedling − 4,173 24,721 122,422 17,686 169,003

Nonstocked − − − 8,994 3,023 12,017

Total − 12,800 178,009 612,611 44,800 848,220

Blue spruce

Sawtimber − − 14,220 − − 14,220

Poletimber −−− 3,069 − 3,069

Sapling/seedling −−− 3,531 − 3,531

Nonstocked − − − − − −

Total − − 14,220 6,600 − 20,820

Cottonwood

Sawtimber −−− 3,542 − 3,542

Poletimber −−−−−−

Sapling/seedling − − 3,550 − − 3,550

Nonstocked − − − − − −

Total − − 3,550 3,542 − 7,092

Douglas-fir

Sawtimber 4,173 30,379 188,386 209,122 − 432,060

Poletimber − − 10,390 30,989 − 41,378

Sapling/seedling − − 8,618 18,902 − 27,519

Nonstocked − − − 38,977 − 38,977

Total 4,173 30,379 207,393 297,990 − 539,934

Engelmann spruce

Sawtimber − 34,960 129,756 230,104 − 394,820

Poletimber − − 7,082 3,300 − 10,383

Sapling/seedling − − 3,300 16,166 − 19,466

Nonstocked − − − − − −

Total − 34,960 140,138 249,571 − 424,669

Juniper 

Sawtimber −−−− 55,190 55,190

Poletimber −−−− 93,033 93,033

Sapling/seedling −−−− 5,609 5,609

Nonstocked − − − − 2,597 2,597

Total −−−− 156,429 156,429

Limber pine

Sawtimber −−− 49,826 6,093 55,919

Poletimber −−− 5,577 − 5,577

Sapling/seedling −−−−−−

Nonstocked − − − 5,905 3,003 8,908

Total −−− 61,308 9,096 70,404

Lodgepole pine

Sawtimber − − 17,633 218,188 − 235,821

Poletimber − − 2,719 127,291 6,115 136,125

Sapling/seedling − − 3,069 83,125 6,369 92,563

Nonstocked − − − − − −

Total − − 23,421 428,604 12,484 464,509

Maple woodland

Sawtimber −−−− 7,341 7,341

Poletimber −−−− 30,055 30,055

Sapling/seedling −−−− 8,896 8,896

Nonstocked − − − − − −

Total −−−− 46,292 46,292

(con.)
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 33

Table 5 (Con.)

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Mountain mahogany 

Sawtimber −−−− 45,521 45,521

Poletimber −−−− 109,778 109,778

Sapling/seedling −−−− 2,779 2,779

Nonstocked − − − − − −

Total −−−− 158,078 158,078

Oak

Sawtimber −−−−−−

Poletimber −−−− 194,839 194,839

Sapling/seedling −−−− 78,956 78,956

Nonstocked − − − − − −

Total −−−− 273,794 273,794

Pinyon-juniper

Sawtimber −−−− 603,041 603,041

Poletimber −−−− 635,232 635,232

Sapling/seedling −−−− 19,996 19,996

Nonstocked − − − − − −

Total −−−− 1,258,268 1,258,268

Ponderosa pine

Sawtimber − − 71,447 233,816 − 305,264

Poletimber − − 3,020 20,639 − 23,659

Sapling/seedling −−− 23,507 − 23,507

Nonstocked − − − 46,222 − 46,222

Total − − 74,468 324,184 − 398,652

Spruce-fir

Sawtimber 2,748 78,695 208,264 169,815 3,542 463,064

Poletimber − − 47,644 59,091 − 106,736

Sapling/seedling − − 3,069 61,750 10,636 75,455

Nonstocked − − − 9,873 − 9,873

Total 2,748 78,695 258,977 300,530 14,178 655,128

White fir

Sawtimber − 34,370 157,267 80,798 − 272,436

Poletimber − − 6,583 − − 6,583

Sapling/seedling − − 18,148 14,055 − 32,204

Nonstocked − − 8,534 − − 8,534

Total − 34,370 190,533 94,854 − 319,757

All types 

Sawtimber 6,921 185,132 826,551 1,333,797 723,724 3,076,126

Poletimber − 1,900 191,148 592,565 1,090,145 1,875,758

Sapling/seedling − 4,173 64,476 343,459 150,927 563,034

Nonstocked − − 8,534 109,971 8,623 127,128

Total 6,921 191,205 1,090,709 2,379,793 1,973,419 5,642,046
34 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 6−Area of other publicly owned forest land by forest type, stand-size class, and productivity

class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen

Sawtimber − − 17,279 21,369 − 38,648

Poletimber − − 8,132 33,991 5,832 47,955

Sapling/seedling − − 2,321 11,467 2,454 16,243

Nonstocked − − − − − −

Total − − 27,732 66,828 8,287 102,846

Blue spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Cottonwood

Sawtimber −−− 5,018 − 5,018

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 5,018 − 5,018

Douglas-fir

Sawtimber − − 58,245 165,633 − 223,879

Poletimber − − 6,766 12,373 − 19,138

Sapling/seedling −−− 35,848 − 35,848

Nonstocked − − 9,582 36,016 − 45,599

Total − − 74,593 249,870 − 324,463

Engelmann spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Juniper 

Sawtimber −−−− 575,850 575,850

Poletimber −−−− 348,047 348,047

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−− 923,897 923,897

Limber pine

Sawtimber −−− 2,321 − 2,321

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 2,321 − 2,321

Lodgepole pine

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Maple woodland

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−− 7,335 7,335

Nonstocked − − − − − −

Total −−−− 7,335 7,335

(con.)
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 35

Table 6 (Con.)

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Mountain mahogany 

Sawtimber −−−− 15,415 15,415

Poletimber −−−− 68,910 68,910

Sapling/seedling −−−− 4,821 4,821

Nonstocked − − − − − −

Total −−−− 89,145 89,145

Oak

Sawtimber −−−−−−

Poletimber −−−− 51,651 51,651

Sapling/seedling −−−− 18,408 18,408

Nonstocked − − − − − −

Total −−−− 70,059 70,059

Pinyon-juniper 

Sawtimber −−−− 3,109,659 3,109,659

Poletimber −−−− 2,375,912 2,375,912

Sapling/seedling −−−− 116,516 116,516

Nonstocked − − − − 14,128 14,128

Total −−−− 5,616,214 5,616,214

Ponderosa pine

Sawtimber − − 17,615 46,974 − 64,590

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − 68,883 − 68,883

Total − − 17,615 115,857 − 133,473

Spruce-fir

Sawtimber −−− 4,939 − 4,939

Poletimber − − 2,454 − − 2,454

Sapling/seedling −−− 4,942 − 4,942

Nonstocked − − − − − −

Total − − 2,454 9,881 − 12,336

White fir

Sawtimber − 5,056 6,510 24,798 − 36,364

Poletimber −−−−−−

Sapling/seedling − − 2,321 − − 2,321

Nonstocked − − − − − −

Total − 5,056 8,832 24,798 − 38,685

All types 

Sawtimber − 5,056 99,650 271,054 3,700,923 4,076,682

Poletimber − − 17,352 46,364 2,850,352 2,914,068

Sapling/seedling − − 4,643 52,257 149,534 206,434

Nonstocked − − 9,582 104,899 14,128 128,609

Total − 5,056 131,227 474,573 6,714,937 7,325,793
36 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 7−Area of nonindustrial private forest land by forest type, stand-size class, and productivity

class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen

Sawtimber − − 23,852 17,726 − 41,578

Poletimber − 8,207 15,448 241,064 59,375 324,094

Sapling/seedling − − 6,298 78,942 14,221 99,461

Nonstocked − − − 11,773 − 11,773

Total − 8,207 45,598 349,505 73,596 476,906

Blue spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Cottonwood

Sawtimber −−− 12,196 4,491 16,688

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 12,196 4,491 16,688

Douglas-fir

Sawtimber − 10,910 57,603 93,818 − 162,330

Poletimber − − 15,836 7,017 − 22,853

Sapling/seedling − − 20,623 22,197 5,044 47,864

Nonstocked − − − 30,955 − 30,955

Total − 10,910 94,063 153,986 5,044 264,002

Engelmann spruce

Sawtimber − 15,183 − 12,715 − 27,898

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − 15,183 − 12,715 − 27,898

Juniper

Sawtimber −−−− 103,061 103,061

Poletimber −−−− 191,358 191,358

Sapling/seedling −−−−−−

Nonstocked − − − − 7,655 7,655

Total −−−− 302,075 302,075

Limber pine

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Lodgepole pine

Sawtimber − − 6,068 16,992 − 23,061

Poletimber −−− 6,298 − 6,298

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − − 6,068 23,290 − 29,359

Maple woodland

Sawtimber −−−−−−

Poletimber −−−− 56,981 56,981

Sapling/seedling −−−− 25,896 25,896

Nonstocked − − − − − −

Total −−−− 82,877 82,877

(con.)
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 37

Table 7 (Con.)

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Mountain mahogany 

Sawtimber −−−− 13,165 13,165

Poletimber −−−− 70,026 70,026

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−− 83,191 83,191

Oak

Sawtimber −−−−−−

Poletimber −−−− 201,148 201,148

Sapling/seedling −−−− 194,035 194,035

Nonstocked − − − − − −

Total −−−− 395,183 395,183

Pinyon-juniper 

Sawtimber −−−− 542,197 542,197

Poletimber −−−− 319,744 319,744

Sapling/seedling −−−− 19,053 19,053

Nonstocked − − − − 10,831 10,831

Total −−−− 891,825 891,825

Ponderosa pine

Sawtimber − − 8,207 38,853 − 47,060

Poletimber −−−−−−

Sapling/seedling − − 9,816 5,436 − 15,252

Nonstocked − − − − − −

Total − − 18,023 44,289 − 62,312

Spruce-fir

Sawtimber − 12,235 38,001 − − 50,236

Poletimber − − 5,436 − − 5,436

Sapling/seedling − − 12,715 − − 12,715

Nonstocked − − − − − −

Total − 12,235 56,152 − − 68,387

White fir

Sawtimber − 5,442 25,307 14,516 − 45,265

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − 5,442 25,307 14,516 − 45,265

All types 

Sawtimber − 43,770 159,038 206,816 662,914 1,072,538

Poletimber − 8,207 36,720 254,379 898,632 1,197,938

Sapling/seedling − − 49,452 106,575 258,248 414,276

Nonstocked −−− 42,728 18,487 61,214

Total − 51,977 245,211 610,498 1,838,281 2,745,966
38 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 8−Area of forest land by stand volume and owner group, Utah, 1993.

 Owner group

 National Other Nonindustrial

Stand volume per acrea Forest public private Total

- - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - -- 

2,884,166 6,924,353 2,213,555 12,022,075

1,500 to 4,999 board feet 960,598 262,298 262,967 1,485,863

5,000 to 9,999 board feet 911,805 77,059 184,558 1,173,372

10,000 board feet or more 885,477 62,083 84,936 1,032,496

Total 5,642,046 7,325,793 2,745,966 15,713,806

aInternational 1⁄4-inch rule.

Table 10−Area of forest land by field location history and distance to road, Utah, 1993.

 Distance to road

 Field Less than 1⁄2 to 1 1 to 3 3 to 5 Greater than 

location history 1⁄2 mile mile miles miles 5 miles Total

- - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - 

None 2,409,486 2,542,990 4,081,293 1,364,938 1,248,846 11,647,553

Tree cutting 527,436 297,997 299,964 72,446 30,829 1,228,673

Animal damage 65,511 19,494 42,302 3,847 7,173 138,327

Insect damage 106,381 81,453 133,962 33,998 17,121 372,915

Disease damage 152,085 126,425 285,947 92,830 54,238 711,524

Weather damage 30,154 33,698 107,855 36,068 − 207,774

Wind damage 19,771 11,544 29,969 6,075 7,845 75,204

Fire evidence 167,545 76,122 264,860 68,581 48,359 625,468

Other land clearing 8,690 13,643 18,375 − − 40,708

Road building 74,541 9,625 6,325 14,398 3,542 108,432

Chaining 103,496 83,657 104,797 32,366 20,434 344,749

Other 83,739 9,850 76,699 3,542 8,816 182,646

Mining 5,982 6,854 11,307 − 5,691 29,834

Total 3,754,816 3,313,352 5,463,655 1,729,089 1,452,893 15,713,806

Table 9−Area of forest land by forest type and stocking condition, Utah, 1993.

 

Stocking condition

 Fully Medium to Poorly 

Forest type Overstocked stocked fully stocked stocked Nonstocked Total 

 - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen 221,699 378,298 475,175 303,046 49,756 1,427,973

Blue spruce − 3,542 3,542 13,736 − 20,820

Cottonwood − − 8,568 20,229 − 28,798

Douglas-fir 35,085 181,774 364,771 404,656 142,113 1,128,400

Engelmann spruce 34,158 113,511 181,595 123,303 − 452,567

Juniper 166,034 163,301 445,594 594,620 12,850 1,382,400

Limber pine − 3,606 29,547 24,049 15,522 72,725

Lodgepole pine 121,564 154,302 181,418 36,584 − 493,868

Maple woodland 23,457 19,209 31,294 48,106 14,438 136,504

Mountain mahogany 25,525 111,084 118,069 75,736 − 330,414

Oak 25,527 73,579 90,265 480,105 69,560 739,036

Pinyon-juniper 1,342,701 1,724,977 2,311,221 2,311,549 75,860 7,766,307

Ponderosa pine − 16,489 142,674 288,521 146,752 594,436

Spruce-fir 132,083 225,656 259,008 109,230 9,873 735,851

White fir 56,353 92,178 148,977 79,511 26,688 403,707

All types 2,184,187 3,261,505 4,791,719 4,912,983 563,412 15,713,806
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 39 Table 12−Area at risk of attack by bark beetles by forest type and risk category, Utah, 1993. 80 percent Not Forest type Low Moderate High dead evaluated Total - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - Spruce and spruce-fir 299,026 525,609 51,782 11,011 321,809 1,209,237 Lodgepole pine 65,772 342,758 35,932 37,029 12,377 493,868 Douglas-fir 197,675 384,245 442,564 16,824 87,092 1,128,400 Ponderosa pine 128,203 215,116 217,695 6,260 27,162 594,436 Total 690,676 1,467,728 747,973 71,124 448,440 3,425,941 Table 13−Area of forest land by habitat type series and forest type, Utah, 1993. Forest type Habitat Blue Engelmann Limber Lodgepole Maple Mountain Pinyon- Ponderosa All type series Aspen spruce Cottonwood Douglas-fir spruce Juniper pine pine woodland mahogany Oak juniper pine Spruce-fir White fir types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Aspen 928,399 − − 27,084 3,542 − − 9,078 − −− − − 21,592 24,307 1,014,002 Blue spruce 13,515 13,222 − 11,238 − − − − − −− − 5,577 − − 43,551 Douglas-fir 91,502 − − 723,735 3,058 − − 7,933 − −− − 78,873 3,022 17,363 925,486 Engelmann spruce 8,727 − − 10,482 140,238 − 7,293 67,735 − −− − − 8,797 − 243,271 Limber pine −− − 23,366 − − 28,156 − − −− − 6,040 − − 57,563 Lodgepole pine 5,717 − − − − −− 170,013 − −− − 3,069 − − 178,799 Ponderosa pine 22,320 − − 3,020 − − − − − −− − 412,246 3,020 − 440,607 Subalpine fir 222,627 3,531 − 158,963 268,668 − 18,476 204,335 − −− − 3,020 651,081 14,716 1,545,418 White fir 79,042 4,068 − 125,437 14,834 − 11,085 − − −− − 64,022 17,513 347,322 663,323 Unclassified 56,124 − 28,798 45,074 22,228 1,382,400 7,715 34,773 136,504 330,414 739,036 7,766,307 21,589 30,825 − 10,601,786 All types 1,427,973 20,820 28,798 1,128,400 452,567 1,382,400 72,725 493,868 136,504 330,414 739,036 7,766,307 594,436 735,851 403,707 15,713,806 Table 11−Area of forest land by forest type and stand-age class, Utah, 1993. Stand-age class Nonstocked/ Forest type Unclassified 1-50 51-100 101-150 151-200 201-250 251-300 301-350 351-400 401-450 451-500 501-550 551-600 601-650 651-700 Total - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Aspen 23,790 348,038 932,382 120,766 2,997 −−−−−−−−−− 1,427,973 Blue spruce − 3,069 14,209 3,542 −−−−−−−−−−− 20,820 Cottonwood − 3,550 − 21,706 3,542 −−−−−−−−−− 28,798 Douglas-fir 115,530 131,057 397,977 284,570 92,843 63,584 25,491 17,348 −−−−−−− 1,128,400 Engelmann spruce − 19,466 90,119 204,308 91,357 23,065 16,015 8,237 −−−−−−− 452,567 Juniper 10,253 155,725 694,552 295,456 97,880 45,006 17,536 27,274 14,390 7,252 − 5,691 − − 11,383 1,382,400 Limber pine 8,908 − 10,166 40,324 4,173 6,833 − 2,321 −−−−−−− 72,725 Lodgepole pine − 70,932 182,629 135,902 80,303 24,102 −−−−−−−−− 493,868 Maple woodland − 80,476 52,478 3,550 −−−−−−−−−−− 136,504 Mountain mahogany − 126,256 162,426 26,865 5,691 5,634 3,542 −−−−−−−− 330,414 Oak − 342,956 290,440 98,307 7,332 −−−−−−−−−− 739,036 Pinyon-juniper 24,959 813,856 2,629,171 1,603,278 1,077,571 615,987 497,906 267,152 96,225 74,975 35,795 20,236 3,760 5,436 − 7,766,307 Ponderosa pine 115,105 64,735 235,266 87,442 50,195 19,096 13,536 6,040 3,020 −−−−−− 594,436 Spruce-fir 9,873 82,410 330,354 247,877 49,071 16,265 −−−−−−−−− 735,851 White fir 8,534 48,420 189,681 98,971 44,155 8,297 5,648 −−−−−−−− 403,707 All types 316,952 2,290,949 6,211,850 3,272,865 1,607,110 827,868 579,675 328,372 113,635 82,228 35,795 25,927 3,760 5,436 11,383 15,713,806
40 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 14−Number of live trees on forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 3,138 1,513 1,603 1,271 678 336 257 182 171 56 126 46 50 41 28 9,495 Bristlecone pine − 181 405 334 38 153 117 70 38 62 14 8 − 12 5 1,439 Douglas-fir 53,565 37,713 26,823 21,949 13,707 10,915 9,004 6,856 4,286 2,794 1,844 1,047 758 374 672 192,307 Engelmann spruce 61,490 44,677 22,699 19,289 14,722 13,051 9,599 6,508 3,633 3,125 1,861 1,059 570 246 351 202,882 Limber pine 5,139 3,911 3,305 1,798 694 853 616 647 288 234 134 125 55 21 107 17,926 Lodgepole pine 104,610 75,424 46,373 28,602 17,325 8,578 4,538 2,039 1,195 589 157 33 23 5 8 289,499 Ponderosa pine 8,155 10,555 7,614 4,661 4,080 3,059 2,559 2,519 1,593 1,111 885 440 428 313 364 48,335 Rocky Mountain junipera 25,011 15,208 10,904 8,519 5,904 3,404 1,977 1,110 1,187 814 603 84 216 66 96 75,104 Singleleaf pinyona 106,825 49,105 27,525 17,784 10,789 5,915 3,851 2,285 1,026 461 314 − − 110 − 225,989 Subalpine fir 251,316 88,599 48,315 28,979 16,765 8,745 4,984 2,839 1,632 876 648 277 229 78 70 454,352 Twoneedle pinyona 275,546 143,606 104,567 74,950 51,294 38,033 23,049 13,430 7,768 4,490 2,313 1,872 957 673 513 743,062 Utah junipera 195,671 106,399 109,248 98,778 86,399 76,116 71,325 52,975 40,514 28,607 17,372 12,760 10,146 5,210 10,623 922,143 White fir 68,947 30,163 17,241 12,018 8,412 4,661 3,708 2,466 1,733 1,017 699 290 315 102 205 151,978 Softwood total 1,159,410 607,055 426,623 318,933 230,808 173,820 135,585 93,926 65,065 44,236 26,970 18,043 13,746 7,251 13,042 3,334,512 Aspen 340,419 240,081 175,464 96,909 41,977 17,918 7,875 3,279 996 272 73 44 4 12 − 925,324 Bigtooth maplea 151,589 38,032 16,850 5,407 2,413 1,380 1,040 222 350 40 − − − −− 217,323 Cottonwood − 301 245 406 385 265 211 57 55 141 134 82 59 35 51 2,427 Curlleaf mtn. mahoganya 32,377 21,113 25,040 20,025 14,313 8,048 3,709 1,522 1,511 454 156 156 8 13 15 128,460 Gambel oaka 1,258,520 250,415 65,278 14,828 2,265 731 − 94 22 − 14 − − −− 1,592,167 Rocky Mountain maplea 45,295 8,702 3,574 1,035 505 121 60 19 − − − − − −− 59,311 True mtn. mahoganya 723 363 251 272 91 − − − − − − − − −− 1,700 Hardwood total 1,828,923 559,007 286,702 138,881 61,949 28,463 12,896 5,193 2,934 907 377 281 71 60 66 2,926,713 All species 2,988,333 1,166,062 713,325 457,814 292,757 202,284 148,481 99,119 67,999 45,143 27,347 18,324 13,817 7,311 13,108 6,261,224

aDiameter taken at root collar rather than at breast height.

Number of Trees
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 41 Table 15−Number of standing dead trees on forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) − 77 45 31 − 66 15 13 − 9 13 − − 268 Bristlecone pine (a) − − 62 −−− 28 − 24 − 16 − − 130 Douglas-fir (a) 2,998 1,404 1,964 1,797 1,154 585 570 366 197 133 96 62 131 11,456 Engelmann spruce (a) 1,974 1,041 1,527 1,547 1,176 829 738 435 268 134 108 67 48 9,891 Limber pine (a) 298 450 100 306 67 190 120 106 23 38 26 − 22 1,745 Lodgepole pine (a) 8,804 8,770 6,129 3,032 1,386 1,106 521 127 94 16 10 − − 29,995 Ponderosa pine (a) 135 304 312 197 212 89 158 131 47 36 78 73 101 1,873 Rocky Mountain juniperb 302 39 272 287 48 74 − − 11 −−−−− 1,032 Singleleaf pinyonb 182 214 384 477 471 122 97 127 38 −−−−− 2,112 Subalpine fir (a) 8,539 7,003 5,449 2,933 1,827 820 535 260 119 92 36 7 40 27,659 Twoneedle pinyonb 1,077 2,424 3,453 4,036 4,002 2,125 1,275 223 425 199 239 − − 226 19,705 Utah juniperb 543 3,023 3,361 5,925 4,557 3,893 3,837 2,099 1,974 711 324 80 288 109 30,725 White fir (a) 2,230 1,809 746 577 349 214 202 109 72 43 − 6 20 6,377 Softwood total 2,104 30,679 28,328 27,059 19,498 12,385 9,107 5,335 3,995 1,753 1,063 462 503 698 142,969 Aspen (a) 32,156 12,024 3,323 1,714 722 146 324 68 9 32 −−− 50,518 Bigtooth mapleb 3,999 1,790 392 206 −−−−−−−−−− 6,387 Cottonwood (a) 273 121 101 114 − 38 25 35 39 42 − 17 11 815 Curlleaf mtn. mahoganyb 1,940 2,488 1,974 2,195 812 390 161 − 28 −−−−− 9,988 Gambel oakb 28,451 6,084 684 118 41 −−− 19 17 −−−− 35,413 Rocky Mountain mapleb 1,430 442 60 − − 34 −−−−−−−− 1,967 True mtn. mahoganyb −−− − − − − − − − − − − − − Hardwood total 35,820 43,232 15,255 5,942 2,682 1,146 346 349 150 65 74 − 17 11 105,089 All species 37,924 73,910 43,584 33,001 22,180 13,532 9,453 5,684 4,145 1,818 1,137 462 520 709 248,058 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
42 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 16−Total oven-dry weight of biomass of all live trees on forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand tons - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 19 33 59 107 106 86 102 104 128 46 153 69 85 82 80 1,260 Bristlecone pine − 4 16 22 8 32 41 33 28 37 13 8 − 19 7 268 Douglas-fir 295 924 1,266 2,402 2,608 3,417 4,104 4,475 3,779 3,063 2,459 1,716 1,399 807 2,118 34,832 Engelmann spruce 369 961 928 1,720 2,467 3,503 3,858 3,694 2,746 2,957 2,138 1,438 910 492 924 29,105 Limber pine 26 78 134 170 118 220 228 286 164 174 125 139 82 32 235 2,209 Lodgepole pine 523 1,508 2,791 3,391 3,688 2,842 2,044 1,230 885 539 165 43 33 12 17 19,712 Ponderosa pine 41 211 344 350 586 742 990 1,388 1,219 1,127 1,183 734 834 774 1,280 11,804 Rocky Mountain juniperb 121 177 306 452 518 542 400 283 415 335 263 46 147 50 69 4,125 Singleleaf pinyonb 489 493 743 997 1,045 884 798 564 334 209 161 − − 85 − 6,802 Subalpine fir 1,382 1,905 2,011 2,645 2,881 2,381 1,968 1,615 1,192 801 721 375 361 140 172 20,551 Twoneedle pinyonb 1,288 1,423 2,604 3,738 4,355 5,199 4,338 3,399 2,468 1,712 1,063 1,079 699 575 623 34,565 Utah juniperb 928 1,035 2,380 4,035 5,594 7,230 9,216 8,865 8,909 7,602 5,575 4,914 4,577 2,627 7,889 81,376 White fir 379 649 674 1,138 1,405 1,260 1,476 1,360 1,284 913 814 402 486 186 539 12,965 Softwood total 5,860 9,400 14,258 21,168 25,380 28,338 29,564 27,296 23,551 19,515 14,834 10,962 9,613 5,882 13,953 259,574 Aspen 681 2,281 5,702 8,467 7,206 5,159 3,317 1,905 772 254 85 60 7 23 − 35,921 Bigtooth mapleb 919 659 793 517 337 275 334 89 221 32 − − − −− 4,177 Cottonwood − 3 5 18 50 45 61 25 33 95 97 88 81 57 111 768 Curlleaf mtn. mahoganyb 64 226 706 1,135 1,500 1,379 942 577 793 324 130 172 11 21 34 8,013 Gambel oakb 14,951 3,675 3,089 1,677 402 221 − 45 22 − 21 − − −− 24,104 Rocky Mountain mapleb 174 140 180 115 103 32 20 11 − − − − − −− 774 True mtn. mahoganyb (a) 4 8 14 9 − − − − − − − − −− 35 Hardwood total 16,790 6,988 10,483 11,942 9,607 7,112 4,674 2,652 1,842 705 332 320 99 101 145 73,792 All species 22,650 16,388 24,741 33,110 34,987 35,450 34,238 29,948 25,393 20,220 15,166 11,282 9,712 5,983 14,098 333,366 aLess than 500 tons. bDiameter taken at root collar rather than at breast height.

Biomass
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 43

Table 17−Net volume of all live trees on forest land by forest type and stand-size class,

Utah, 1993.

 Stand-size class

 Sapling/ All 

Forest type Sawtimber Poletimber seedling Nonstocked classes

- - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - 

Aspen 524,844 1,159,958 79,841 1,881 1,766,524

Blue spruce 34,981 1,105 867 − 36,953

Cottonwood 19,281 − 541 − 19,822

Douglas-fir 1,483,481 157,054 67,182 50,701 1,758,418

Engelmann spruce 1,098,131 27,458 4,915 − 1,130,504

Juniper 456,265 203,446 106 866 660,683

Limber pine 63,403 5,478 − 1,679 70,560

Lodgepole pine 712,947 246,418 37,465 − 996,830

Maple woodland 6,830 101,401 14,000 − 122,232

Mountain mahogany 52,223 112,826 272 − 165,322

Oak − 189,722 29,891 − 219,613

Pinyon-juniper 3,511,339 1,850,664 3,763 188 5,365,955

Ponderosa pine 475,772 17,488 13,958 60,122 567,340

Spruce-fir 1,473,823 226,372 36,100 5,403 1,741,699

White fir 720,739 9,892 18,855 4,119 753,606

All types 10,634,060 4,309,283 307,757 124,960 15,376,060

Table 18−Net volume of all live trees on forest land by species and owner group,

Utah, 1993.

 

Owner group

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - -

Blue spruce 68,607 − 4,766 73,372

Bristlecone pine 7,877 3,584 − 11,461

Douglas-fir 993,271 300,957 353,500 1,647,728

Engelmann spruce 1,633,131 6,082 71,653 1,710,865

Limber pine 88,342 7,291 13,029 108,661

Lodgepole pine 940,797 652 83,936 1,025,385

Ponderosa pine 382,078 77,497 68,043 527,618

Rocky Mountain juniper 112,691 54,388 17,852 184,931

Singleleaf pinyon 38,238 298,456 20,533 357,227

Subalpine fir 893,380 19,592 117,831 1,030,803

Twoneedle pinyon 462,878 1,237,783 237,615 1,938,276

Utah juniper 581,919 2,746,460 473,243 3,801,622

White fir 485,886 49,107 63,606 598,599

Softwood total 6,689,096 4,801,849 1,525,605 13,016,549

Aspen 1,222,814 127,204 393,565 1,743,583

Bigtooth maple 29,629 7,965 97,914 135,507

Cottonwood 4,488 7,723 18,580 30,792

Curlleaf mtn. mahogany 82,674 55,703 30,502 168,879

Gambel oak 109,047 39,084 107,066 255,197

Rocky Mountain maple 21,456 1,132 2,272 24,859

True mtn. mahogany 46 646 − 693

Hardwood total 1,470,154 239,458 649,899 2,359,511

All species 8,159,250 5,041,306 2,175,504 15,376,060

Volume
44 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 19−Net volume of all live trees on forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) 2,534 5,176 6,369 5,439 6,645 6,784 8,337 2,918 9,718 4,352 5,240 5,014 4,847 73,372 Bristlecone pine (a) 434 1,129 473 1,359 2,303 1,124 1,628 1,445 272 432 − 715 147 11,461 Douglas-fir (a) 49,059 110,622 127,112 172,454 210,323 232,540 191,276 152,885 118,333 83,293 65,083 37,072 97,676 1,647,728 Engelmann spruce (a) 43,238 97,709 149,916 219,753 248,689 240,780 174,893 185,497 129,680 87,790 53,144 27,931 51,846 1,710,865 Limber pine (a) 4,043 9,785 6,797 12,404 13,005 15,177 7,960 9,174 6,872 7,548 2,967 1,717 11,210 108,661 Lodgepole pine (a) 128,956 208,335 233,334 171,227 122,980 72,444 46,350 27,853 8,857 1,528 1,825 719 977 1,025,385 Ponderosa pine (a) 11,735 16,621 29,928 38,164 48,570 67,543 56,338 50,126 54,057 32,588 35,286 33,681 52,981 527,618 Rocky Mountain juniperb 5,209 10,769 17,884 21,851 24,865 19,540 14,023 21,391 17,998 14,189 2,542 7,886 2,864 3,919 184,931 Singleleaf pinyonb 17,509 34,548 53,696 60,767 54,220 49,829 35,737 21,167 13,337 10,901 − − 5,517 − 357,227 Subalpine fir (a) 96,844 152,567 180,867 151,131 126,207 104,537 74,005 48,370 41,349 19,542 18,931 7,401 9,053 1,030,803 Twoneedle pinyonb 50,606 119,207 196,830 247,709 312,229 266,613 213,505 157,848 110,532 69,785 70,716 46,924 34,158 41,614 1,938,276 Utah juniperb 30,684 84,914 158,611 236,253 321,200 418,372 418,964 426,049 366,596 274,417 247,621 238,905 137,422 441,615 3,801,622 White fir (a) 26,088 54,689 72,165 67,401 79,755 72,120 68,719 44,689 39,501 18,628 22,720 8,442 23,682 598,599 Softwood total 104,007 612,370 1,083,654 1,373,540 1,551,845 1,612,831 1,495,279 1,255,960 1,031,421 777,931 576,581 498,910 302,653 739,567 13,016,549 Aspen (a) 327,488 480,093 390,472 261,872 152,397 82,778 33,442 9,683 3,063 1,488 304 504 − 1,743,583 Bigtooth mapleb 23,019 31,248 21,893 14,624 12,332 15,559 4,256 10,990 1,586 − − − −− 135,507 Cottonwood (a) 268 417 1,441 1,401 3,068 1,208 920 4,084 2,994 3,858 3,509 2,703 4,919 30,792 Curlleaf mtn. mahoganyb 5,898 17,411 26,643 33,862 27,636 19,517 11,248 14,278 5,683 2,490 2,936 243 437 598 168,879 Gambel oakb 89,539 88,242 53,840 13,567 7,186 − 1,627 657 − 538 − − −− 255,197 Rocky Mountain mapleb 4,867 7,229 5,106 4,808 1,426 898 526 − − − − − −− 24,859 True mtn. mahoganyb 93 175 271 154 − − − − − − − − −− 693 Hardwood total 123,416 472,062 588,263 458,928 311,853 191,440 101,642 60,287 21,036 9,084 8,282 4,057 3,643 5,517 2,359,511 All species 227,423 1,084,432 1,671,917 1,832,468 1,863,699 1,804,271 1,596,921 1,316,247 1,052,457 787,015 584,863 502,967 306,296 745,083 15,376,060 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 45 Table 20−Net volume of all live trees on forest land by species and forest type, Utah, 1993. Forest type Blue Engelmann Limber Lodgepole Maple Mountain Pinyon- Ponderosa All Species Aspen spruce Cottonwood Douglas-fir spruce Juniper pine pine woodland mahogany Oak juniper pine Spruce-fir White fir types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 23,967 31,097 − 4,669 − −− 291 − −− − 1,041 8,077 4,231 73,372 Bristlecone pine −− − − − − 341 − − −− − − 6,495 4,626 11,461 Douglas-fir 86,343 1,355 875 1,236,697 31,751 35 7,838 3,051 − 4,637 − 31,806 29,163 107,179 106,999 1,647,728 Engelmann spruce 41,337 638 − 29,841 930,278 − 10,416 84,002 − −− − 1,637 606,312 6,404 1,710,865 Limber pine 3,414 − − 34,065 6,359 133 37,501 − − 3,711 − 28 2,413 7,078 13,959 108,661 Lodgepole pine 22,368 − − 10,083 70,142 − − 870,714 − −− − − 52,078 − 1,025,385 Ponderosa pine 20,712 751 − 29,942 462 − 2,367 −− − 268 2,446 416,592 3,157 50,922 527,618 Rocky Mountain juniper 7,630 − 198 27,673 − 10,605 1,351 119 21 8,374 6,533 63,174 43,123 1,051 15,079 184,931 Singleleaf pinyon −− − 2,910 − −− − − 10,076 51 339,938 4,253 − − 357,227 Subalpine fir 133,260 − − 72,662 45,101 − 3,040 26,966 − −− − 1,501 747,589 685 1,030,803 Twoneedle pinyon 374 − − 83,187 − − 579 − − 3,496 3,309 1,823,921 21,270 − 2,139 1,938,276 Utah juniper 707 − − 38,995 − 637,825 760 − − 26,523 17,486 3,055,599 21,238 − 2,488 3,801,622 White fir 45,645 − − 65,587 3,325 159 2,522 − − 682 − 1,259 7,902 5,990 465,528 598,599 Softwood total 385,757 33,841 1,073 1,636,311 1,087,417 648,757 66,715 985,143 21 57,499 27,647 5,318,170 550,132 1,545,006 673,060 13,016,549 Aspen 1,347,920 3,112 − 95,801 43,087 7,169 2,392 11,687 110 − 28 − 3,518 185,933 42,826 1,743,583 Bigtooth maple 14,762 − − 310 − 2,425 − − 90,200 4,601 17,698 − −− 5,511 135,507 Cottonwood 893 − 18,749 − − −− − − −− 3,247 1,229 6,545 128 30,792 Curlleaf mtn. mahogany 108 − − 19,548 − 164 1,295 − 242 102,787 1,413 32,078 3,062 2,842 5,339 168,879 Gambel oak 15,576 − − 5,330 − 2,168 158 − 13,446 364 171,303 11,767 9,398 979 24,709 255,197 Rocky Mountain maple 1,509 − − 1,118 − −− − 18,212 71 1,524 − − 393 2,032 24,859 True mtn. mahogany −− − − − −− − − −− 693 − −− 693 Hardwood total 1,380,768 3,112 18,749 122,107 43,087 11,926 3,845 11,687 122,211 107,823 191,966 47,784 17,208 196,693 80,546 2,359,511 All species 1,766,524 36,953 19,822 1,758,418 1,130,504 660,683 70,560 996,830 122,232 165,322 219,613 5,365,955 567,340 1,741,699 753,606 15,376,060
46 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 21−Net annual growth of all live trees on forest land by species 

and owner group, Utah, 1992.

 

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - -Thousand cubic feet - - - - - - - - - 

Blue spruce 996 − 96 1,093

Bristlecone pine 107 77 − 185

Douglas-fir 11,382 1,175 7,403 19,960

Engelmann spruce 13,524 105 256 13,885

Limber pine 915 76 233 1,223

Lodgepole pine 5,137 19 −122 5,034

Ponderosa pine 8,896 418 1,397 10,711

Rocky Mountain juniper 910 317 155 1,382

Singleleaf pinyon 534 3,242 203 3,979

Subalpine fir −10,564 788 −758 −10,533

Twoneedle pinyon 4,036 7,364 1,626 13,027

Utah juniper 2,819 13,061 2,551 18,431

White fir 7,165 41 663 7,869

Softwood total 45,858 26,681 13,705 86,244

Aspen 17,537 2,048 12,096 31,680

Bigtooth maple 580 101 1,599 2,281

Cottonwood 52 −593 −626 −1,166

Curlleaf mtn. mahogany 743 495 301 1,538

Gambel oak 3,282 1,179 3,254 7,715

Rocky Mountain maple 155 101 135 391

True mtn. mahogany 1 8 − 9

Hardwood total 22,350 3,339 16,759 42,447

All species 68,208 30,021 30,464 128,692

Growth
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 47 Table 22−Net annual growth of all live trees on forest land by species and diameter class, Utah, 1992. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) 461 202 227 186 115 147 −46 61 95 −98 −170 −127 40 1,093 Bristlecone pine (a) 13 52 9 22 28 12 19 12 3 6 − 7 1 185 Douglas-fir (a) 3,935 4,207 3,402 2,144 2,423 2,613 524 421 798 −311 −190 33 −40 19,960 Engelmann spruce (a) 2,637 2,410 2,407 2,180 2,470 1,715 596 38 −355 −34 108 −187 −102 13,885 Limber pine (a) 392 295 69 −120 239 234 105 71 71 −6 35 16 −177 1,223 Lodgepole pine (a) 8,624 1,628 −656 522 −1,360 −1,384 −1,653 −449 69 −323 9 3 3 5,034 Ponderosa pine (a) 1,422 1,099 1,593 1,384 1,441 1,698 580 732 666 128 340 96 −468 10,711 Rocky Mountain juniperb 124 173 191 175 239 148 81 94 73 43 7 22 7 6 1,382 Singleleaf pinyonb 1,004 669 834 650 274 315 43 90 49 37 − − 14 − 3,979 Subalpine fir (a) 7,074 448 −4,145 −3,115 −3,453 −2,228 −1,801 −1,529 −552 −698 −116 50 −467 −10,533 Twoneedle pinyonb 2,665 2,326 2,549 2,045 1,156 1,286 732 637 −207 −647 187 129 82 85 13,027 Utah juniperb 1,277 1,353 1,764 2,079 2,362 2,434 1,722 1,343 1,200 784 598 509 280 725 18,431 White fir (a) 2,237 1,879 1,897 721 539 27 435 170 −136 −64 227 −64 2 7,869 Softwood total 5,069 31,316 17,560 9,752 7,956 6,624 5,412 924 642 875 −607 903 211 −393 86,244 Aspen (a) 19,040 7,823 4,877 524 521 118 −828 −378 41 −63 1 5 − 31,680 Bigtooth mapleb 1,443 421 192 −46 98 99 22 44 7 − − − −− 2,281 Cottonwood (a) −26 −35 −195 −89 30 17 −109 −137 −254 −250 51 −93 −77 −1,166 Curlleaf mtn. mahoganyb 229 260 291 245 213 127 59 66 25 8 11 1 1 1 1,538 Gambel oakb 5,963 1,309 567 72 −2 − 8 2 − 1 −207 − −− 7,715 Rocky Mountain mapleb 267 13 53 38 12 5 2 − − − − − −− 391 True mtn. mahoganyb 223 1 − − − − − − − − −− 9 Hardwood total 7,905 21,020 8,894 4,993 757 782 227 −825 −484 −204 −509 53 −86 −76 42,447 All species 12,974 52,336 26,455 14,745 8,712 7,406 5,639 99 158 671 −1,115 956 125 −469 128,692 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
48 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 23−Annual mortality of all live trees on forest land by species and 

owner group, Utah, 1992.

 

Owner group

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - -Thousand cubic feet - - - - - - - - - - 

Blue spruce 708 − − 708

Bristlecone pine −−− −

Douglas-fir 7,812 5,882 1,107 14,801

Engelmann spruce 11,671 − 924 12,594

Limber pine 960 − − 960

Lodgepole pine 16,526 − 1,224 17,749

Ponderosa pine 1,542 998 − 2,540

Rocky Mountain juniper − 87 − 87

Singleleaf pinyon 5 511 − 517

Subalpine fir 37,232 283 4,921 42,435

Twoneedle pinyon 195 3,922 372 4,489

Utah juniper 86 370 153 610

White fir 5,818 953 1,122 7,893

Softwood total 82,553 13,007 9,823 105,384

Aspen 13,599 658 3,607 17,865

Bigtooth maple 157 − 217 374

Cottonwood − 671 851 1,521

Curlleaf mtn. mahogany 85 44 − 129

Gambel oak 527 315 − 842

Rocky Mountain maple 111 − − 111

True mtn. mahogany −−− −

Hardwood total 14,479 1,688 4,675 20,842

All species 97,032 14,695 14,498 126,225

Mortality
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 49 Table 24−Annual mortality of all live trees on forest land by species and diameter class, Utah, 1992. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) −− − − − − 163 − − 132 227 185 − 708 Bristlecone pine (a) −− − − − − − − − − − − − − Douglas-fir (a) 500 310 855 2,247 1,967 1,560 2,364 1,483 492 1,144 845 326 709 14,801 Engelmann spruce (a) 110 392 982 1,915 1,292 1,493 1,412 1,661 1,378 741 317 436 466 12,594 Limber pine (a) 56 74 136 309 −−−−− 114 − − 272 960 Lodgepole pine (a) 797 3,270 4,370 1,644 2,687 1,970 2,042 635 − 334 − −− 17,749 Ponderosa pine (a) − 178 197 174 78 − 572 92 − 214 − 191 846 2,540 Rocky Mountain juniperb (a) − 32 55 − − − − − − − − −− 87 Singleleaf pinyonb 5 57 − 109 205 − 140 − − − − − −− 517 Subalpine fir (a) 2,398 5,255 9,757 6,957 6,069 4,101 3,006 2,174 1,009 886 286 − 536 42,435 Twoneedle pinyonb 8 86 312 716 1,276 319 288 − 605 879 − − −− 4,489 Utah juniperb 16 − 42 55 − − 208 289 − − − − −− 610 White fir (a) 404 556 712 1,179 1,344 1,327 750 379 571 294 − 146 231 7,893 Softwood total 30 4,409 10,421 17,944 15,907 13,755 11,087 10,597 7,029 4,329 3,858 1,675 1,283 3,061 105,384 Aspen (a) 3,980 4,792 2,394 3,253 1,168 643 1,088 469 − 77 − −− 17,865 Bigtooth mapleb 60 67 68 179 − − − − − − − − −− 374 Cottonwood (a) 36 41 216 105 − − 120 206 285 291 − 121 101 1,521 Curlleaf mtn. mahoganyb 8 20 30 71 − − − − − − − − −− 129 Gambel oakb 403 144 − 41 47 −−−−− 207 − −− 842 Rocky Mountain mapleb 12 99 − − − − − − − − − − −− 111 True mtn. mahoganyb −−− − − − − − − − − − − − − Hardwood total 482 4,347 4,930 2,901 3,406 1,168 643 1,207 675 285 575 − 121 101 20,842 All species 512 8,756 15,351 20,845 19,312 14,923 11,731 11,805 7,704 4,614 4,433 1,675 1,404 3,161 126,225 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
50 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 25−Annual mortality of all live trees on forest land by species and cause of death, Utah, 1992. Cause of death Human Species Insects Disease Fire Animal Weather Suppression Unknown caused Total - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 410 185 − −− − 113 − 708 Bristlecone pine − − − −− − − − − Douglas-fir 9,693 3,256 257 − 378 − 1,168 49 14,801 Engelmann spruce 7,750 1,284 413 − 1,644 − 1,345 158 12,594 Limber pine 546 413 − −− − − − 960 Lodgepole pine 13,595 1,396 422 109 685 − 1,543 − 17,749 Ponderosa pine 1,412 468 293 − 92 − 161 115 2,540 Rocky Mountain juniper 55 − 32 −− − − − 87 Singleleaf pinyon 352 − − −− − 164 − 517 Subalpine fir 13,549 18,182 250 − 5,122 73 4,940 319 42,435 Twoneedle pinyon 1,000 2,461 − 11 123 172 722 − 4,489 Utah juniper 42 22 − − 86 − 399 61 610 White fir 2,569 3,549 − − 349 − 1,382 45 7,893 Softwood total 50,972 31,216 1,668 119 8,479 245 11,937 747 105,384 Aspen 1,308 12,264 178 55 1,270 − 2,565 224 17,865 Bigtooth maple − 221 35 −− − 118 − 374 Cottonwood − − 530 105 206 − 680 − 1,521 Curlleaf mtn. mahogany 8 44 − − 12 − 65 − 129 Gambel oak 73 125 7 − 4 14 618 − 842 Rocky Mountain maple − 49 − −− − 62 − 111 True mtn. mahogany − − − −− − − − − Hardwood total 1,389 12,704 750 160 1,492 14 4,108 224 20,842 All species 52,361 43,920 2,418 279 9,972 259 16,046 971 126,225
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 51 Table 26−Average percent crown canopy cover by life form, average percent bare ground, total number and most common understory species recorded by forest type, number of locations, and number of acres, Utah, 1993. Average Average Average Average Total number percent percent percent percent of different Most common shrub forb grass bare species understory Number of Acres Forest type cover cover cover ground recordeda species locations summarized Pinyon-juniper 21 9 8 15 118 Big sagebrush 970 7,335,118 Aspen 31 27 25 4 223 Mountain snowberry 354 1,384,865 Juniper 18 7 12 25 54 Big sagebrush 193 1,336,090 Douglas-fir 32 11 10 7 165 Mountain snowberry 235 1,089,226 Oak 34 15 23 7 69 Mountain snowberry 125 725,872 Spruce-fir/Bristlecone 16 17 11 4 151 Gooseberry currant 205 724,837 Ponderosa pine 34 6 10 10 82 Greenleaf manzanita 143 581,600 Lodgepole pine 22 10 11 4 88 Grouse whortleberry 137 487,510 Engelmann/Blue spruce 19 14 10 5 102 Grouse whortleberry 125 464,341 White fir 30 10 9 6 89 Mountain snowberry 109 403,707 Mountain mahogany 33 9 17 11 42 Gambel oak 49 330,414 Maple woodland 21 19 19 4 29 Common choke cherry 28 133,756 Limber pine 24 7 9 8 30 Common juniper 21 72,725 Cottonwood 22 12 16 4 24 Skunkbush sumac 6 28,798 No datab −− − − − − 77 614,946 Total 2,777 15,713,805 aTo be recorded, species had to have 5% or greater cover on a plot. bNo understory information was collected on these plots, in most instances because of snow cover.

Understory Cover
52 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 27−Area, volume, growth, and mortality of live trees on 

forest land by county, Utah, 1993.

County Area Volume Growth Mortality

 - - Acres- - - - - - Thousand cubic feet - - - - -

Beaver 676,902 554,549 6,687 1,441

Box Elder 310,389 202,027 2,103 312

Cache 307,302 501,885 3,580 5,356

Carbon 405,064 428,884 5,579 2,440

Daggett 269,249 258,105 3,363 2,256

Davis 25,728 20,110 186 325

Duchesne 934,780 1,158,011 8,051 9,406

Emery 474,865 475,370 1,066 5,749

Garfield 1,590,950 1,531,363 14,090 10,878

Grand 778,820 659,720 3,607 5,834

Iron 824,481 824,329 2,064 10,049

Juab 408,874 340,965 1,570 3,233

Kane 1,244,746 962,320 7,158 2,796

Millard 437,856 318,108 3,730 423

Morgan 134,450 123,146 3,692 662

Piute 233,798 271,512 3,170 1,966

Rich 94,324 147,549 1,506 1,391

Salt Lake 105,976 98,714 1,288 1,351

San Juan 1,483,045 1,199,400 11,362 3,344

Sanpete 463,899 612,003 4,950 8,320

Sevier 644,262 711,675 6,193 6,193

Summit 643,958 1,045,751 10,765 11,101

Tooele 441,084 290,041 1,572 2,327

Uintah 909,750 872,071 2,533 10,510

Utah 504,244 482,663 3,163 8,128

Wasatch 454,625 559,107 8,786 5,884

Washington 602,274 436,254 3,982 1,950

Wayne 200,940 180,208 777 1,649

Weber 107,171 110,222 2,118 953

Total 15,713,806 15,376,060 128,692 126,225

County
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 53

Table 28−Area of nonreserved forest land by forest type, stand-size class, and productivity class, 

Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Aspen

Sawtimber − 6,728 80,709 177,680 2,997 268,114

Poletimber − 10,107 130,706 617,666 86,301 844,779

Sapling/seedling − 4,173 33,341 212,832 34,362 284,707

Nonstocked − − − 8,994 3,023 12,017

Total − 21,008 244,755 1,017,171 126,683 1,409,616

Blue spruce 

Sawtimber − − 14,220 − − 14,220

Poletimber − − − 3,069 − 3,069

Sapling/seedling − − − 3,531 − 3,531

Nonstocked − − − − − −

Total − − 14,220 6,600 − 20,820

Cottonwood 

Sawtimber − − − 20,756 4,491 25,247

Poletimber −−−−−−

Sapling/seedling − − 3,550 − − 3,550

Nonstocked − − − − − −

Total − − 3,550 20,756 4,491 28,798

Douglas-fir 

Sawtimber 4,173 34,223 273,566 424,437 − 736,399

Poletimber − − 32,992 50,378 − 83,370

Sapling/seedling − − 29,241 76,946 5,044 111,231

Nonstocked − − 9,582 88,289 − 97,871

Total 4,173 34,223 345,381 640,050 5,044 1,028,871

Engelmann spruce 

Sawtimber − 45,206 129,756 154,573 − 329,535

Poletimber − − 7,082 3,300 − 10,383

Sapling/seedling − − 3,300 3,020 − 6,320

Nonstocked − − − − − −

Total − 45,206 140,138 160,893 − 346,238

Juniper 

Sawtimber −−− − 708,167 708,167

Poletimber −−− − 632,438 632,438

Sapling/seedling −−− − 5,609 5,609

Nonstocked − − − − 10,253 10,253

Total −−− − 1,356,467 1,356,467

Limber pine 

Sawtimber − − − 39,997 6,093 46,090

Poletimber − − − 5,577 − 5,577

Sapling/seedling −−−−−−

Nonstocked − − − 5,905 3,003 8,908

Total − − − 51,478 9,096 60,574

Lodgepole pine 

Sawtimber − − 23,702 139,803 − 163,504

Poletimber − − 2,719 117,143 6,115 125,977

Sapling/seedling − − 3,069 83,125 6,369 92,563

Nonstocked − − − − − −

Total − − 29,489 340,071 12,484 382,044

Maple woodland 

Sawtimber −−− − 7,341 7,341

Poletimber −−− − 87,037 87,037

Sapling/seedling −−− − 42,127 42,127

Nonstocked − − − − − −

Total −−− − 136,504 136,504

(con.)

Nonreserved Forest Land
54 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 29−Area of nonreserved forest land by stand volume and owner group,

Utah, 1993.

 Owner group

 National Other Nonindustrial

Stand volume per acrea Forest public private Total

- - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - 

Less than 1,500 board feet 2,759,731 6,713,024 2,164,939 11,637,694

1,500 to 4,999 board feet 901,543 238,475 262,967 1,402,985

5,000 to 9,999 board feet 806,560 67,181 184,508 1,058,249

10,000 board feet or more 707,825 51,972 84,936 844,733

Total 5,175,659 7,070,652 2,697,350 14,943,661

aInternational 1⁄4-inch rule.

Table 28 (Con.)

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

 - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - -

Mountain mahogany

Sawtimber −−−− 68,886 68,886

Poletimber −−−− 248,713 248,713

Sapling/seedling −−−− 7,600 7,600

Nonstocked − − − − − −

Total −−−− 325,200 325,200

Oak 

Sawtimber −−−−−−

Poletimber −−−− 442,582 442,582

Sapling/seedling −−−− 291,398 291,398

Nonstocked − − − − − −

Total −−−− 733,980 733,980

Pinyon-juniper 

Sawtimber −−−− 4,115,498 4,115,498

Poletimber −−−− 3,226,467 3,226,467

Sapling/seedling −−−− 155,564 155,564

Nonstocked − − − − 24,959 24,959

Total −−−− 7,522,489 7,522,489

Ponderosa pine 

Sawtimber − − 87,275 293,758 − 381,033

Poletimber − − 3,020 20,639 − 23,659

Sapling/seedling − − 9,816 28,943 − 38,759

Nonstocked − − − 110,165 − 110,165

Total − − 100,111 453,505 − 553,617

Spruce-fir 

Sawtimber 2,748 77,790 246,265 164,878 3,542 495,223

Poletimber − − 55,535 59,091 − 114,626

Sapling/seedling − − 15,784 49,256 3,073 68,113

Nonstocked − − − − − −

Total 2,748 77,790 317,583 273,226 6,615 677,962

White fir 

Sawtimber − 34,598 177,054 114,097 − 325,750

Poletimber −−−−−−

Sapling/seedling − − 17,078 9,118 − 26,197

Nonstocked − − 8,534 − − 8,534

Total − 34,598 202,667 123,216 − 360,481

All types 

Sawtimber 6,921 198,545 1,032,547 1,529,979 4,917,016 7,685,008

Poletimber − 10,107 232,053 876,862 4,729,653 5,848,676

Sapling/seedling − 4,173 115,179 466,772 551,146 1,137,270

Nonstocked − − 18,117 213,353 41,237 272,707

Total 6,921 212,825 1,397,896 3,086,966 10,239,052 14,943,661
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 55

Table 31−Area of nonreserved forest land by field location history and distance to road, Utah, 1993.

 

Distance to road

Field Less than 1⁄2 to 1 1 to 3 3 to 5 Greater than 

location history 1⁄2 mile mile miles miles 5 miles Total

 - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - -

None 2,365,699 2,475,109 3,910,051 1,259,007 1,016,905 11,026,771

Tree cutting 527,436 297,997 286,884 72,446 24,256 1,209,020

Animal damage 65,511 19,494 42,302 3,847 7,173 138,327

Insect damage 106,381 81,453 133,962 33,998 17,121 372,915

Disease damage 152,085 126,425 265,522 92,830 29,555 666,415

Weather damage 25,215 33,698 107,855 29,485 − 196,251

Wind damage 19,771 11,544 29,969 − 2,908 64,192

Fire evidence 167,545 76,122 240,621 58,708 20,403 563,400

Other land clearing 8,690 13,643 18,375 − − 40,708

Road building 74,541 9,625 6,325 14,398 3,542 108,432

Chaining 103,496 83,657 104,797 32,366 20,434 344,749

Other 83,739 9,850 76,699 3,542 8,816 182,646

Mining 5,982 6,854 11,307 − 5,691 29,834

Total 3,706,090 3,245,472 5,234,668 1,600,626 1,156,804 14,943,661

Table 30−Area of nonreserved forest land by forest type and stocking condition, Utah, 1993.

Stocking condition 

 Fully Medium to fully Poorly 

Forest type Overstocked stocked stocked stocked Nonstocked Total 

 - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Aspen 221,699 378,298 468,592 303,046 37,983 1,409,616

Blue spruce − 3,542 3,542 13,736 − 20,820

Cottonwood − − 8,568 20,229 − 28,798

Douglas-fir 29,070 175,699 316,109 383,539 124,454 1,028,871

Engelmann spruce 27,585 97,065 119,668 101,920 − 346,238

Juniper 166,034 159,909 436,701 580,972 12,850 1,356,467

Limber pine − 3,606 23,472 17,973 15,522 60,574

Lodgepole pine 91,971 113,200 140,288 36,584 − 382,044

Maple woodland 23,457 19,209 31,294 48,106 14,438 136,504

Mountain mahogany 25,525 111,084 118,069 70,522 − 325,200

Oak 20,472 73,579 90,265 480,105 69,560 733,980

Pinyon-juniper 1,300,403 1,712,426 2,222,201 2,229,259 58,200 7,522,489

Ponderosa pine − 16,489 131,604 268,648 136,876 553,617

Spruce-fir 125,018 214,644 254,072 84,228 − 677,962

White fir 46,947 80,949 131,323 74,574 26,688 360,481

All types 2,078,181 3,159,698 4,495,768 4,713,443 496,571 14,943,661
56 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 32−Area of nonreserved forest land by forest type and stand-age class, Utah, 1993. Stand-age class Nonstocked/ All Forest type Unclassified 1-50 51-100 101-150 151-200 201-250 251-300 301-350 351-400 401-450 451-500 501-550 551-600 601-650 651-700 classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Aspen 12,017 348,038 925,799 120,766 2,997 −−−−−−−−−− 1,409,616 Blue spruce − 3,069 14,209 3,542 −−−−−−−−−−− 20,820 Cottonwood − 3,550 − 21,706 3,542 −−−−−−−−−− 28,798 Douglas-fir 97,871 131,057 378,902 264,424 57,259 63,584 18,426 17,348 −−−−−−− 1,028,871 Engelmann spruce − 6,320 85,182 168,143 55,164 12,113 16,015 3,300 −−−−−−− 346,238 Juniper 10,253 155,725 675,684 288,391 97,880 45,006 17,536 27,274 14,390 7,252 − 5,691 − − 11,383 1,356,467 Limber pine 8,908 − 10,166 28,173 4,173 6,833 − 2,321 −−−−−−− 60,574 Lodgepole pine − 70,932 159,609 114,520 30,964 6,019 −−−−−−−−− 382,044 Maple woodland − 80,476 52,478 3,550 −−−−−−−−−−− 136,504 Mountain mahogany − 126,256 157,211 26,865 5,691 5,634 3,542 −−−−−−−− 325,200 Oak − 342,956 290,440 93,252 7,332 −−−−−−−−−− 733,980 Pinyon-juniper 24,959 800,685 2,562,515 1,543,582 1,043,211 586,260 482,600 251,250 93,592 68,607 35,795 20,236 3,760 5,436 − 7,522,489 Ponderosa pine 110,165 59,799 214,201 82,503 50,195 19,096 8,597 6,040 3,020 −−−−−− 553,617 Spruce-fir − 64,973 316,716 230,936 49,071 16,265 −−−−−−−−− 677,962 White fir 8,534 40,092 172,828 86,941 38,140 8,297 5,648 −−−−−−−− 360,481 All types 272,707 2,233,930 6,015,941 3,077,295 1,445,620 769,106 552,365 307,534 111,002 75,860 35,795 25,927 3,760 5,436 11,383 14,943,661
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 57 Table 33−Number of live trees on nonreserved forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 3,138 1,513 1,603 1,271 678 336 257 182 171 56 126 46 50 41 28 9,495 Bristlecone pine − 181 405 90 38 65 73 33 38 45 − 8 − 12 5 994 Douglas-fir 50,689 35,064 25,691 20,796 12,910 10,430 8,578 6,188 3,714 2,563 1,617 871 728 322 542 180,705 Engelmann spruce 46,688 37,347 18,916 14,657 11,996 10,835 7,799 5,273 3,152 2,434 1,633 965 513 217 298 162,724 Limber pine 5,139 3,911 2,774 1,661 516 611 616 483 146 212 111 125 55 21 91 16,472 Lodgepole pine 92,970 66,711 40,511 22,109 12,587 5,684 2,585 1,028 625 250 83 − 12 5 − 245,160 Ponderosa pine 6,942 9,948 7,034 4,512 3,440 2,782 2,346 2,394 1,542 941 838 415 399 277 340 44,148 Rocky Mountain junipera 22,895 14,221 10,026 7,914 5,381 3,181 1,787 1,022 1,116 711 571 84 115 66 96 69,187 Singleleaf pinyona 106,322 49,105 27,525 17,717 10,722 5,848 3,851 2,285 1,026 461 314 − − 110 − 225,285 Subalpine fir 237,064 82,696 45,890 27,145 16,241 8,485 4,792 2,662 1,557 876 581 246 195 78 70 428,578 Twoneedle pinyona 265,494 141,531 101,535 73,011 50,240 37,201 21,977 13,061 7,695 4,250 2,286 1,872 957 673 513 722,297 Utah junipera 190,695 105,209 107,721 96,792 84,755 74,215 70,186 51,363 39,210 27,678 16,799 11,894 10,034 4,956 10,401 901,908 White fir 63,260 26,278 15,983 11,123 7,580 4,318 3,344 2,009 1,536 858 584 261 216 92 197 137,638 Softwood total 1,091,295 573,716 405,616 298,799 217,084 163,991 128,190 87,983 61,528 41,334 25,543 16,789 13,274 6,870 12,580 3,144,592 Aspen 332,670 238,128 174,345 96,113 40,759 17,494 7,516 3,160 996 272 73 44 4 12 − 911,585 Bigtooth maplea 151,589 38,032 16,850 5,407 2,413 1,380 1,040 222 350 40 − − − −− 217,323 Cottonwood − 301 245 406 385 265 211 57 55 141 134 82 59 35 51 2,427 Curlleaf mtn. mahoganya 31,264 20,537 24,988 20,025 14,261 7,890 3,664 1,470 1,511 454 156 156 8 13 15 126,411 Gambel oaka 1,218,500 244,217 62,027 13,018 2,074 612 − 94 − − − − − −− 1,540,542 Rocky Mountain maplea 43,320 8,702 3,574 1,035 505 121 60 19 − − − − − −− 57,336 True mtn. mahoganya 723 363 251 272 91 − − − − − − − − −− 1,700 Hardwood total 1,778,066 550,280 282,279 136,275 60,489 27,762 12,491 5,022 2,911 907 363 281 71 60 66 2,857,324 All species 2,869,362 1,123,996 687,895 435,074 277,573 191,753 140,681 93,005 64,439 42,241 25,906 17,071 13,345 6,930 12,646 6,001,917 aDiameter taken at root collar rather than at breast height.

Number of Trees
58 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 34−Total oven-dry weight of biomass of all live trees on nonreserved forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand tons - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 19 33 59 107 106 86 102 104 128 46 153 69 85 82 80 1,260 Bristlecone pine − 4 16 6 8 12 21 14 28 29 − 8 − 19 7 172 Douglas-fir 279 859 1,218 2,294 2,457 3,269 3,914 4,056 3,237 2,809 2,135 1,431 1,339 684 1,682 31,662 Engelmann spruce 280 803 795 1,345 2,078 2,965 3,207 3,081 2,396 2,337 1,901 1,318 820 436 814 24,576 Limber pine 26 78 112 156 95 155 228 218 92 152 107 139 82 32 213 1,884 Lodgepole pine 465 1,334 2,452 2,653 2,663 1,919 1,170 669 485 232 93 − 21 12 − 14,169 Ponderosa pine 35 199 315 340 489 668 897 1,312 1,178 940 1,114 682 764 662 1,146 10,741 Rocky Mountain junipera 114 165 273 410 474 513 354 264 385 289 250 46 75 50 69 3,731 Singleleaf pinyona 486 493 743 995 1,040 876 798 564 334 209 161 − − 85 − 6,783 Subalpine fir 1,304 1,778 1,925 2,500 2,791 2,306 1,892 1,504 1,137 801 652 325 300 140 172 19,527 Twoneedle pinyona 1,239 1,405 2,526 3,655 4,267 5,089 4,146 3,302 2,438 1,632 1,044 1,079 699 575 623 33,720 Utah junipera 904 1,020 2,352 3,960 5,497 7,065 9,071 8,594 8,643 7,352 5,402 4,586 4,525 2,503 7,773 79,248 White fir 348 565 615 1,048 1,244 1,164 1,306 1,092 1,107 768 676 361 316 167 519 11,297 Softwood total 5,497 8,736 13,401 19,469 23,210 26,087 27,107 24,774 21,588 17,596 13,688 10,043 9,026 5,449 13,099 238,770 Aspen 665 2,262 5,656 8,404 6,974 5,012 3,136 1,830 772 254 85 60 7 23 − 35,142 Bigtooth maplea 919 659 793 517 337 275 334 89 221 32 − − − −− 4,177 Cottonwood − 3 5 18 50 45 61 25 33 95 97 88 81 57 111 768 Curlleaf mtn. mahoganya 60 218 704 1,135 1,494 1,351 930 560 793 324 130 172 11 21 34 7,937 Gambel oaka 14,452 3,590 2,876 1,468 368 180 − 45 − − − − − −− 22,979 Rocky Mountain maplea 163 140 180 115 103 32 20 11 − − − − − −− 763 True mtn. mahoganya (b) 4 8 14 9 − − − − − − − − −− 35 Hardwood total 16,260 6,876 10,222 11,670 9,333 6,896 4,481 2,560 1,820 705 312 320 99 101 145 71,800 All species 21,758 15,612 23,623 31,139 32,543 32,983 31,587 27,335 23,408 18,301 14,000 10,363 9,125 5,550 13,244 310,571 aDiameter taken at root collar rather than at breast height bLess than 500 tons.

Biomass
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 59

Table 36−Net volume of all live trees on nonreserved forest land by species 

and owner group, Utah, 1993.

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - -

Blue spruce 68,607 − 4,766 73,372

Bristlecone pine 6,328 1,628 − 7,956

Douglas-fir 857,089 283,508 353,500 1,494,097

Engelmann spruce 1,384,990 6,082 71,653 1,462,725

Limber pine 73,063 7,291 13,029 93,382

Lodgepole pine 634,448 652 83,936 719,036

Ponderosa pine 355,180 52,932 68,043 476,155

Rocky Mountain juniper 105,756 43,029 17,852 166,637

Singleleaf pinyon 38,238 297,577 20,533 356,348

Subalpine fir 846,231 19,592 117,831 983,654

Twoneedle pinyon 445,879 1,208,812 237,503 1,892,195

Utah juniper 549,608 2,679,293 472,936 3,701,836

White fir 418,616 35,016 63,606 517,238

Softwood total 5,784,033 4,635,412 1,525,186 11,944,631

Aspen 1,189,497 125,763 393,565 1,708,825

Bigtooth maple 29,629 7,965 97,914 135,507

Cottonwood 4,488 7,723 18,580 30,792

Curlleaf mtn. mahogany 81,452 55,526 30,502 167,480

Gambel oak 107,342 21,870 107,066 236,277

Rocky Mountain maple 21,456 1,132 2,272 24,859

True mtn. mahogany 46 646 − 693

Hardwood total 1,433,909 220,625 649,899 2,304,433

All species 7,217,943 4,856,037 2,175,085 14,249,064

Table 35−Net volume of all live trees on nonreserved forest land by forest type and 

stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ All 

Forest type Sawtimber Poletimber seedling Nonstocked classes

 - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - 

Aspen 524,844 1,150,853 79,841 1,881 1,757,420

Blue spruce 34,981 1,105 867 − 36,953

Cottonwood 19,281 − 541 − 19,822

Douglas-fir 1,313,385 157,054 67,182 50,701 1,588,321

Engelmann spruce 877,635 27,458 2,781 − 907,874

Juniper 446,657 203,446 106 866 651,075

Limber pine 52,734 5,478 − 1,679 59,891

Lodgepole pine 431,949 212,157 37,465 − 681,572

Maple woodland 6,830 101,401 14,000 − 122,232

Mountain mahogany 51,418 112,826 272 − 164,516

Oak − 180,332 29,891 − 210,223

Pinyon-juniper 3,403,923 1,823,851 3,763 188 5,231,726

Ponderosa pine 426,103 17,488 13,958 56,401 513,950

Spruce-fir 1,409,613 226,372 32,152 − 1,668,137

White fir 614,615 − 16,618 4,119 635,352

All types 9,613,969 4,219,822 299,437 115,836 14,249,064

Volume
60 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 37−Net volume of all live trees on nonreserved forest land by species and diameter class, Utah, 1993. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) 2,534 5,176 6,369 5,439 6,645 6,784 8,337 2,918 9,718 4,352 5,240 5,014 4,847 73,372 Bristlecone pine (a) 434 313 473 637 1,156 722 1,628 1,299 − 432 − 715 147 7,956 Douglas-fir (a) 47,540 105,796 119,588 164,967 200,555 210,737 162,924 139,999 101,954 69,328 62,184 31,010 77,515 1,494,097 Engelmann spruce (a) 37,674 77,523 127,194 189,775 208,285 201,759 153,970 148,518 115,670 80,466 49,152 25,281 47,458 1,462,725 Limber pine (a) 3,311 8,922 5,537 8,706 13,005 12,127 4,927 7,853 5,926 7,548 2,967 1,717 10,835 93,382 Lodgepole pine (a) 114,323 163,807 168,134 116,152 70,230 40,680 25,937 13,069 4,822 − 1,164 719 − 719,036 Ponderosa pine (a) 10,575 16,137 24,992 34,177 43,610 63,570 54,226 41,122 50,742 30,106 31,899 28,398 46,601 476,155 Rocky Mountain juniperb 4,868 9,614 16,153 20,056 23,466 17,203 13,133 19,750 15,392 13,467 2,542 4,210 2,864 3,919 166,637 Singleleaf pinyonb 17,509 34,548 53,588 60,479 53,737 49,829 35,737 21,167 13,337 10,901 − − 5,517 − 356,348 Subalpine fir (a) 92,989 145,332 175,264 146,211 121,189 97,122 70,361 48,370 37,260 16,533 16,569 7,401 9,053 983,654 Twoneedle pinyonb 50,008 115,662 192,619 242,768 305,558 254,876 207,384 156,078 105,349 68,480 70,716 46,924 34,158 41,614 1,892,195 Utah juniperb 30,228 83,849 155,644 232,351 314,192 411,803 406,340 413,457 354,557 266,082 230,911 236,525 130,680 435,216 3,701,836 White fir (a) 23,576 50,130 63,562 62,141 70,550 57,303 58,989 37,494 32,337 16,535 14,337 7,555 22,730 517,238 Softwood total 102,612 576,628 991,142 1,246,767 1,425,157 1,468,937 1,353,398 1,151,748 929,279 717,359 529,469 471,171 281,027 699,936 11,944,631 Aspen (a) 325,069 476,757 378,314 255,179 145,334 79,689 33,442 9,683 3,063 1,488 304 504 − 1,708,825 Bigtooth mapleb 23,019 31,248 21,893 14,624 12,332 15,559 4,256 10,990 1,586 − − − −− 135,507 Cottonwood (a) 268 417 1,441 1,401 3,068 1,208 920 4,084 2,994 3,858 3,509 2,703 4,919 30,792 Curlleaf mtn. mahoganyb 5,711 17,377 26,643 33,751 27,096 19,247 10,992 14,278 5,683 2,490 2,936 243 437 598 167,480 Gambel oakb 87,482 81,825 47,117 12,389 5,837 − 1,627 − − − − − −− 236,277 Rocky Mountain mapleb 4,867 7,229 5,106 4,808 1,426 898 526 − − − − − −− 24,859 True mtn. mahoganyb 93 175 271 154 − − − − − − − − −− 693 Hardwood total 121,171 463,192 578,204 445,481 303,270 184,107 98,298 59,630 21,036 8,546 8,282 4,057 3,643 5,517 2,304,433 All species 223,783 1,039,820 1,569,347 1,692,249 1,728,427 1,653,043 1,451,696 1,211,378 950,315 725,905 537,752 475,228 284,670 705,453 14,249,064 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 61 Table 38−Net volume of all live trees on nonreserved forest land by species and forest type, Utah, 1993. Forest type Blue Engelmann Limber Lodgepole Maple Mountain Pinyon- Ponderosa Species Aspen spruce Cottonwood Douglas-fir spruce Juniper pine pine woodland mahogany Oak juniper pine Spruce-fir White fir All types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 23,967 31,097 − 4,669 −−− 291 − −− − 1,041 8,077 4,231 73,372 Bristlecone pine −− − − −− 341 −− −− − − 4,539 3,076 7,956 Douglas-fir 85,341 1,355 875 1,121,342 26,133 35 5,832 3,051 − 4,637 − 31,806 21,365 94,079 98,247 1,494,097 Engelmann spruce 41,337 638 − 24,783 758,016 − 8,403 42,196 − −− − 822 583,076 3,452 1,462,725 Limber pine 3,414 − − 30,980 4,310 133 30,851 − − 3,711 − 28 2,413 7,078 10,465 93,382 Lodgepole pine 22,368 − − 8,173 35,892 − − 601,125 − −− − − 51,478 − 719,036 Ponderosa pine 20,712 751 − 27,031 462 − 2,367 −− − 268 2,043 392,809 3,094 26,619 476,155 Rocky Mountain juniper 7,630 − 198 26,566 − 10,605 1,351 119 21 8,374 6,533 57,370 32,015 1,051 14,804 166,637 Singleleaf pinyon −− − 2,910 −−− −− 10,076 51 339,059 4,253 − − 356,348 Subalpine fir 133,260 − − 62,089 40,542 − 3,040 24,242 − −− − 1,501 718,296 685 983,654 Twoneedle pinyon 374 − − 77,098 − − 579 − − 3,496 3,309 1,784,631 20,568 − 2,139 1,892,195 Utah juniper 707 − − 37,228 − 628,423 760 − − 26,523 17,486 2,968,190 20,031 − 2,488 3,701,836 White fir 43,280 − − 56,903 3,325 − 2,522 − − 682 − 1,259 6,963 5,822 396,482 517,238 Softwood total 382,390 33,841 1,073 1,479,772 868,680 639,196 56,046 671,024 21 57,499 27,647 5,184,385 503,780 1,476,589 562,688 11,944,631 Aspen 1,342,182 3,112 − 83,902 39,194 7,169 2,392 10,548 110 − 28 − 3,518 180,964 35,704 1,708,825 Bigtooth maple 14,762 − − 310 − 2,425 − − 90,200 4,601 17,698 − −− 5,511 135,507 Cottonwood 893 − 18,749 − −−− −− −− 3,247 1,229 6,545 128 30,792 Curlleaf mtn. mahogany 108 − − 19,548 − 164 1,295 − 242 101,981 1,413 32,078 2,645 2,666 5,339 167,480 Gambel oak 15,576 − − 3,671 − 2,122 158 − 13,446 364 161,913 11,324 2,777 979 23,949 236,277 Rocky Mountain maple 1,509 − − 1,118 −−− − 18,212 71 1,524 − − 393 2,032 24,859 True mtn. mahogany −− − − −−− −− −− 693 −−− 693 Hardwood total 1,375,030 3,112 18,749 108,549 39,194 11,879 3,845 10,548 122,211 107,017 182,576 47,341 10,170 191,547 72,664 2,304,433 All species 1,757,420 36,953 19,822 1,588,321 907,874 651,075 59,891 681,572 122,232 164,516 210,223 5,231,726 513,950 1,668,137 635,352 14,249,064
62 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 39−Net annual growth of all live trees on nonreserved forest land by

species and owner group, Utah, 1992.

 

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - Thousand cubic feet - - - - - - - - - -

Blue spruce 996 − 96 1,093

Bristlecone pine 96 19 − 115

Douglas-fir 10,676 1,071 7,403 19,150

Engelmann spruce 13,030 105 256 13,391

Limber pine 804 76 233 1,113

Lodgepole pine 2,934 19 −122 2,830

Ponderosa pine 8,556 33 1,397 9,986

Rocky Mountain juniper 859 252 155 1,266

Singleleaf pinyon 534 3,234 203 3,971

Subalpine fir −6,399 788 −758 −6,369

Twoneedle pinyon 3,900 7,223 1,625 12,748

Utah juniper 2,709 12,751 2,549 18,009

White fir 6,184 −117 663 6,730

Softwood total 44,877 25,452 13,702 84,031

Aspen 18,763 2,019 12,096 32,878

Bigtooth maple 580 101 1,599 2,281

Cottonwood 52 −593 −626 −1,166

Curlleaf mtn. mahogany 730 493 301 1,524

Gambel oak 3,232 1,255 3,254 7,741

Rocky Mountain maple 155 101 135 391

True mtn. mahogany 1 8 − 9

Hardwood total 23,514 3,385 16,759 43,657

All species 68,391 28,837 30,460 127,688

Growth
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 63 Table 40−Net annual growth of all live trees on nonreserved forest land by species and diameter class, Utah, 1992. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) 461 202 227 186 115 147 −46 61 95 −98 −170 −127 40 1,093 Bristlecone pine (a) 13 11 9 9 22 8 19 10 − 6 − 7 1 115 Douglas-fir (a) 3,846 4,056 3,075 2,203 2,260 2,235 974 290 675 −195 −235 150 −184 19,150 Engelmann spruce (a) 2,354 2,121 2,107 2,564 2,210 1,702 467 56 132 −59 82 −217 −129 13,391 Limber pine (a) 343 260 22 30 239 177 60 61 58 −6 35 16 −181 1,113 Lodgepole pine (a) 7,821 662 −931 188 −1,359 −1,436 −1,561 −268 41 −334 6 3 − 2,830 Ponderosa pine (a) 1,354 1,085 1,542 1,295 1,296 1,626 557 627 626 102 319 48 −492 9,986 Rocky Mountain juniperb 118 155 173 159 229 132 76 90 63 40 7 11 7 6 1,266 Singleleaf pinyonb 1,004 669 832 647 270 315 43 90 49 37 − − 14 − 3,971 Subalpine fir (a) 6,447 543 −2,867 −1,644 −2,606 −1,863 −927 −1,529 −621 −741 −144 50 −467 −6,369 Twoneedle pinyonb 2,649 2,265 2,518 2,056 1,102 1,215 706 629 −226 −651 187 129 82 85 12,748 Utah juniperb 1,268 1,336 1,731 2,046 2,307 2,396 1,667 1,292 1,161 761 560 505 266 714 18,009 White fir (a) 2,070 1,733 1,632 534 546 −22 269 62 −27 −97 115 −70 −12 6,730 Softwood total 5,038 29,134 15,926 9,724 9,273 6,780 5,064 1,913 418 1,165 −668 653 229 −620 84,031 Aspen (a) 18,983 8,160 4,657 766 454 334 −321 −138 41 −63 1 5 − 32,878 Bigtooth mapleb 1,443 421 192 −46 98 99 22 44 7 − − − −− 2,281 Cottonwood (a) −26 −35 −195 −89 30 17 −109 −137 −254 −250 51 −93 −77 −1,166 Curlleaf mtn. mahoganyb 225 259 291 244 208 126 57 66 25 8 11 1 1 1 1,524 Gambel oakb 5,958 1,222 500 63 −10 − 8 − − − − − −− 7,741 Rocky Mountain mapleb 267 13 53 38 12 5 2 − − − − − −− 391 True mtn. mahoganyb 223 1 − − − − − − − − −− 9 Hardwood total 7,895 20,875 9,163 4,763 986 714 441 −321 −243 −205 −302 53 −86 −76 43,657 All species 12,934 50,009 25,090 14,486 10,259 7,494 5,506 1,592 175 960 −970 706 143 −695 127,688 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
64 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 41−Annual mortality of all live trees on nonreserved forest land by

species and owner group, Utah, 1992.

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

- - - - - - - - - - Thousand cubic feet - - - - - - - - - -

Blue spruce 708 − − 708

Bristlecone pine −− − −

Douglas-fir 6,624 5,715 1,107 13,446

Engelmann spruce 9,065 − 924 9,988

Limber pine 756 − − 756

Lodgepole pine 14,649 − 1,224 15,873

Ponderosa pine 1,542 837 − 2,379

Rocky Mountain juniper − 87 − 87

Singleleaf pinyon 5 511 − 517

Subalpine fir 31,362 283 4,921 36,566

Twoneedle pinyon 195 3,839 372 4,406

Utah juniper 86 370 153 610

White fir 5,349 748 1,122 7,219

Softwood total 70,340 12,391 9,823 92,554

Aspen 11,801 658 3,607 16,066

Bigtooth maple 157 − 217 374

Cottonwood − 671 851 1,521

Curlleaf mtn. mahogany 85 44 − 129

Gambel oak 527 20 − 546

Rocky Mountain maple 111 − − 111

True mtn. mahogany −− − −

Hardwood total 12,681 1,393 4,675 18,748

All species 83,021 13,784 14,498 111,302

Mortality
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 65 Table 42−Annual mortality of all live trees on nonreserved forest land by species and diameter class, Utah, 1992. Diameter class (inches) All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce (a) −− − − − − 163 − − 132 227 185 − 708 Bristlecone pine (a) −− − − − − − − − − − −− − Douglas-fir (a) 500 310 855 2,051 1,967 1,560 1,642 1,483 492 873 845 159 709 13,446 Engelmann spruce (a) 110 200 809 1,085 1,131 1,122 1,412 1,333 827 741 317 436 466 9,988 Limber pine (a) 56 74 136 105 −−−−− 114 − − 272 756 Lodgepole pine (a) 797 3,270 3,815 1,414 2,243 1,810 1,827 363 − 334 − −− 15,873 Ponderosa pine (a) − 178 35 174 78 − 572 92 − 214 − 191 846 2,379 Rocky Mountain juniperb − − 32 55 − − − − − − − − −− 87 Singleleaf pinyonb 5 57 − 109 205 − 140 − − − − − −− 517 Subalpine fir (a) 2,313 4,957 8,238 5,375 5,107 3,607 2,077 2,174 1,009 886 286 − 536 36,566 Twoneedle pinyonb 8 86 288 657 1,276 319 288 − 605 879 − − −− 4,406 Utah juniperb 16 − 42 55 − − 208 289 − − − − −− 610 White fir (a) 403 466 712 1,179 1,140 1,122 750 379 397 294 − 146 231 7,219 Softwood total 30 4,322 9,818 15,476 12,865 11,984 9,857 8,732 6,429 3,603 3,587 1,675 1,117 3,061 92,554 Aspen (a) 3,980 4,373 2,394 2,870 1,168 394 581 228 − 77 − −− 16,066 Bigtooth mapleb 60 67 68 179 − − − − − − − − −− 374 Cottonwood (a) 36 41 216 105 − − 120 206 285 291 − 121 101 1,521 Curlleaf mtn. mahoganyb 8 20 30 71 − − − − − − − − −− 129 Gambel oakb 315 144 − 41 47 − − − − − − − −− 546 Rocky Mountain mapleb 12 99 − − − − − − − − − − −− 111 True mtn. mahoganyb −−− − − − − − − − − − −− − Hardwood total 394 4,347 4,512 2,901 3,022 1,168 394 701 434 285 369 − 121 101 18,748 All species 423 8,669 14,331 18,377 15,887 13,152 10,250 9,432 6,863 3,888 3,955 1,675 1,237 3,161 111,302 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".
66 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 43−Annual mortality of all live trees on nonreserved forest land by species and cause of death, Utah, 1992.

Cause of death 

 Human 

Species Insects Disease Fire Animal Weather Suppression Unknown caused Total 

 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Blue spruce 410 185 − − − − 113 − 708

Bristlecone pine − − − − − − − − −

Douglas-fir 8,545 3,256 257 − 378 − 961 49 13,446

Engelmann spruce 6,481 1,284 413 − 466 − 1,186 158 9,988

Limber pine 546 210 − − − − − − 756

Lodgepole pine 12,504 1,086 177 109 454 − 1,543 − 15,873

Ponderosa pine 1,412 468 293 − 92 − − 115 2,379

Rocky Mountain juniper 55 − 32 − − − − − 87

Singleleaf pinyon 352 − − − − − 164 − 517

Subalpine fir 13,549 14,332 250 − 3,189 73 4,854 319 36,566

Twoneedle pinyon 1,000 2,378 − 11 123 172 722 − 4,406

Utah juniper 42 22 − − 86 − 399 61 610

White fir 2,274 3,374 − − 349 − 1,177 45 7,219

Softwood total 47,170 26,594 1,423 119 5,137 245 11,119 747 92,554

Aspen 1,308 10,668 178 55 1,068 − 2,565 224 16,066

Bigtooth maple − 221 35 − − − 118 − 374

Cottonwood − − 530 105 206 − 680 − 1,521

Curlleaf mtn. mahogany 8 44 − − 12 − 65 − 129

Gambel oak 73 125 7 − 4 14 323 − 546

Rocky Mountain maple − 49 − − − − 62 − 111

True mtn. mahogany − − − − − − − − −

Hardwood total 1,389 11,107 750 160 1,291 14 3,813 224 18,748

All species 48,559 37,701 2,173 279 6,427 259 14,932 971 111,302
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 67

Table 44−Area, volume, growth and mortality of live trees on

nonreserved forest land by county, Utah

County Area Volume Growth Mortality

- - -Acres - - - - - - - - Thousand cubic feet - - - - -

Beaver 676,902 554,549 6,687 1,441

Box Elder 304,994 188,436 1,935 253

Cache 270,306 408,682 2,428 4,954

Carbon 405,064 428,884 5,579 2,440

Daggett 269,249 258,105 3,363 2,256

Davis 25,728 20,110 186 325

Duchesne 767,685 849,029 7,352 5,707

Emery 474,651 475,320 1,066 5,749

Garfield 1,499,557 1,450,894 13,596 10,305

Grand 727,105 658,179 3,596 5,834

Iron 812,658 794,352 1,972 9,700

Juab 398,849 318,564 3,254 1,125

Kane 1,219,361 946,974 6,999 2,728

Millard 437,856 318,108 3,730 423

Morgan 134,450 123,146 3,692 662

Piute 233,798 271,512 3,170 1,966

Rich 94,324 147,549 1,506 1,391

Salt Lake 76,503 88,549 1,104 1,264

San Juan 1,419,602 1,142,768 11,014 3,344

Sanpete 463,899 612,003 4,950 8,320

Sevier 643,831 711,581 6,192 6,193

Summit 552,850 806,793 9,173 9,729

Tooele 421,334 269,420 2,333 730

Uintah 874,188 839,103 2,340 10,510

Utah 489,969 450,764 5,560 5,127

Wasatch 454,625 559,107 8,786 5,884

Washington 520,859 273,967 3,285 340

Wayne 166,294 172,394 723 1,649

Weber 107,171 110,222 2,118 953

Total 14,943,661 14,249,064 127,688 111,302

County
68 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 45−Area of nonreserved timberland by forest type, stand-size class, and productivity class, 

Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Aspen

Sawtimber − 6,728 80,709 177,680 2,997 268,114

Poletimber − 10,107 130,706 617,666 86,301 844,779

Sapling/seedling − 4,173 33,341 212,832 34,362 284,707

Nonstocked − − − 8,994 3,023 12,017

Total − 21,008 244,755 1,017,171 126,683 1,409,616

Blue spruce 

Sawtimber − − 14,220 − − 14,220

Poletimber −−− 3,069 − 3,069

Sapling/seedling −−− 3,531 − 3,531

Nonstocked − − − − − −

Total − − 14,220 6,600 − 20,820

Cottonwood 

Sawtimber −−− 20,756 4,491 25,247

Poletimber −−−−−−

Sapling/seedling − − 3,550 − − 3,550

Nonstocked − − − − − −

Total − − 3,550 20,756 4,491 28,798

Douglas-fir 

Sawtimber 4,173 34,223 273,566 424,437 − 736,399

Poletimber − − 32,992 50,378 − 83,370

Sapling/seedling − − 29,241 76,946 5,044 111,231

Nonstocked − − 9,582 88,289 − 97,871

Total 4,173 34,223 345,381 640,050 5,044 1,028,871

Engelmann spruce 

Sawtimber − 45,206 129,756 154,573 − 329,535

Poletimber − − 7,082 3,300 − 10,383

Sapling/seedling − − 3,300 3,020 − 6,320

Nonstocked − − − − − −

Total − 45,206 140,138 160,893 − 346,238

Limber pine 

Sawtimber −−− 39,997 6,093 46,090

Poletimber −−− 5,577 − 5,577

Sapling/seedling −−−−−−

Nonstocked − − − 5,905 3,003 8,908

Total −−− 51,478 9,096 60,574

Lodgepole pine 

Sawtimber − − 23,702 139,803 − 163,504

Poletimber − − 2,719 117,143 6,115 125,977

Sapling/seedling − − 3,069 83,125 6,369 92,563

Nonstocked − − − − − −

Total − − 29,489 340,071 12,484 382,044

Ponderosa pine 

Sawtimber − − 87,275 293,758 − 381,033

Poletimber − − 3,020 20,639 − 23,659

Sapling/seedling − − 9,816 28,943 − 38,759

Nonstocked − − − 110,165 − 110,165

Total − − 100,111 453,505 − 553,617

Spruce-fir 

Sawtimber 2,748 77,790 246,265 164,878 3,542 495,223

Poletimber − − 55,535 59,091 − 114,626

Sapling/seedling − − 15,784 49,256 3,073 68,113

Nonstocked − − − − − −

Total 2,748 77,790 317,583 273,226 6,615 677,962

White fir 

Sawtimber − 34,598 177,054 114,097 − 325,750

Poletimber −−−−−−

Sapling/seedling − − 17,078 9,118 − 26,197

Nonstocked − − 8,534 − − 8,534

Total − 34,598 202,667 123,216 − 360,481

All types 

Sawtimber 6,921 198,545 1,032,547 1,529,979 17,123 2,785,115

Poletimber − 10,107 232,053 876,862 92,416 1,211,439

Sapling/seedling − 4,173 115,179 466,772 48,847 634,971

Nonstocked − − 18,117 213,353 6,026 237,495

Total 6,921 212,825 1,397,896 3,086,966 164,412 4,869,021

a

On tables 45 through 79, nonreserved timberland includes (traditional timber types) all productivity classes, and excludes 

juniper, pinyon-juniper, oak, mountain mahogany, and maple.

Nonreserved Timberland

Area
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 69

Table 46−Area of National Forest nonreserved timberland by forest type, stand-size class, and productivity 

class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Aspen

Sawtimber − 6,728 39,578 138,585 2,997 187,887

Poletimber − 1,900 107,126 342,610 21,094 472,730

Sapling/seedling − 4,173 24,721 122,422 17,686 169,003

Nonstocked − − − 8,994 3,023 12,017

Total − 12,800 171,426 612,611 44,800 841,636

Blue spruce

Sawtimber − − 14,220 − − 14,220

Poletimber −−− 3,069 − 3,069

Sapling/seedling −−− 3,531 − 3,531

Nonstocked − − − − − −

Total − − 14,220 6,600 − 20,820

Cottonwood

Sawtimber −−− 3,542 − 3,542

Poletimber −−−−−−

Sapling/seedling − − 3,550 − − 3,550

Nonstocked − − − − − −

Total − − 3,550 3,542 − 7,092

Douglas-fir

Sawtimber 4,173 23,314 162,657 173,875 − 364,019

Poletimber − − 10,390 30,989 − 41,378

Sapling/seedling − − 8,618 18,902 − 27,519

Nonstocked − − − 38,977 − 38,977

Total 4,173 23,314 181,664 262,743 − 471,894

Engelmann spruce

Sawtimber − 30,024 129,756 141,858 − 301,637

Poletimber − − 7,082 3,300 − 10,383

Sapling/seedling − − 3,300 3,020 − 6,320

Nonstocked − − − − − −

Total − 30,024 140,138 148,178 − 318,340

Limber pine

Sawtimber −−− 37,676 6,093 43,769

Poletimber −−− 5,577 − 5,577

Sapling/seedling −−−−−−

Nonstocked − − − 5,905 3,003 8,908

Total −−− 49,157 9,096 58,253

Lodgepole pine

Sawtimber − − 17,633 122,810 − 140,444

Poletimber − − 2,719 110,845 6,115 119,679

Sapling/seedling − − 3,069 83,125 6,369 92,563

Nonstocked − − − − − −

Total − − 23,421 316,780 12,484 352,686

Ponderosa pine

Sawtimber − − 71,447 222,865 − 294,312

Poletimber − − 3,020 20,639 − 23,659

Sapling/seedling −−− 23,507 − 23,507

Nonstocked − − − 46,222 − 46,222

Total − − 74,468 313,232 − 387,700

Spruce-fir

Sawtimber 2,748 65,555 208,264 164,878 3,542 444,987

Poletimber − − 47,644 59,091 − 106,736

Sapling/seedling − − 3,069 44,314 3,073 50,456

Nonstocked − − − − − −

Total 2,748 65,555 258,977 268,284 6,615 602,178

White fir

Sawtimber − 29,156 145,237 74,783 − 249,176

Poletimber −−−−−−

Sapling/seedling − − 14,757 9,118 − 23,875

Nonstocked − − 8,534 − − 8,534

Total − 29,156 168,528 83,902 − 281,586

All types 

Sawtimber 6,921 154,775 788,792 1,080,872 12,632 2,043,993

Poletimber − 1,900 177,981 576,119 27,209 783,209

Sapling/seedling − 4,173 61,084 307,940 27,128 400,325

Nonstocked − − 8,534 100,098 6,026 114,658

Total 6,921 160,848 1,036,392 2,065,029 72,995 3,342,185
70 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 47−Area of other publicly owned nonreserved timberland by forest type, stand-size class, and 

productivity class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Aspen

Sawtimber − − 17,279 21,369 − 38,648

Poletimber − − 8,132 33,991 5,832 47,955

Sapling/seedling − − 2,321 11,467 2,454 16,243

Nonstocked − − − − − −

Total − − 27,732 66,828 8,287 102,846

Blue spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Cottonwood

Sawtimber −−− 5,018 − 5,018

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 5,018 − 5,018

Douglas-fir

Sawtimber − − 53,306 156,744 − 210,050

Poletimber − − 6,766 12,373 − 19,138

Sapling/seedling −−− 35,848 − 35,848

Nonstocked − − 9,582 36,016 − 45,599

Total − − 69,654 240,980 − 310,635

Engelmann spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Limber pine

Sawtimber −−− 2,321 − 2,321

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 2,321 − 2,321

Lodgepole pine

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Ponderosa pine

Sawtimber − − 7,621 32,041 − 39,661

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − 63,944 − 63,944

Total − − 7,621 95,984 − 103,605

Spruce-fir

Sawtimber −−−−−−

Poletimber − − 2,454 − − 2,454

Sapling/seedling −−− 4,942 − 4,942

Nonstocked − − − − − −

Total − − 2,454 4,942 − 7,396

White fir

Sawtimber − − 6,510 24,798 − 31,308

Poletimber −−−−−−

Sapling/seedling − − 2,321 − − 2,321

Nonstocked − − − − − −

Total − − 8,832 24,798 − 33,630

All types 

Sawtimber − − 84,716 242,291 − 327,008

Poletimber − − 17,352 46,364 5,832 69,548

Sapling/seedling − − 4,643 52,257 2,454 59,354

Nonstocked − − 9,582 99,960 − 109,542

Total − − 116,294 440,872 8,287 565,452
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 71 Table 49−Area of nonreserved timberland by stand volume and owner group, Utah, 1993. Owner group National Other Nonindustrial Stand volume per acrea Forest public private Total - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - Less than 1,500 board feet 926,256 207,824 428,973 1,563,054 1,500 to 4,999 board feet 901,543 238,475 262,967 1,402,985 5,000 to 9,999 board feet 806,560 67,181 184,508 1,058,249 10,000 board feet or more 707,825 51,972 84,936 844,733 Total 3,342,185 565,452 961,384 4,869,021

aInternational 

1⁄4-inch rule.

Table 48−Area of nonindustrial private nonreserved timberland by forest type, stand-size class, and 

productivity class, Utah, 1993.

Forest type and Productivity class 

stand-size class 120-164 85-119 50-84 20-49 0-19 Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Aspen

Sawtimber − − 23,852 17,726 − 41,578

Poletimber − 8,207 15,448 241,064 59,375 324,094

Sapling/seedling − − 6,298 78,942 14,221 99,461

Nonstocked − − − − − −

Total − 8,207 45,598 337,732 73,596 465,133

Blue spruce

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Cottonwood

Sawtimber −−− 12,196 4,491 16,688

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−− 12,196 4,491 16,688

Douglas-fir

Sawtimber − 10,910 57,603 93,818 − 162,330

Poletimber − − 15,836 7,017 − 22,853

Sapling/seedling − − 20,623 22,197 5,044 47,864

Nonstocked − − − 13,295 − 13,295

Total − 10,910 94,063 136,327 5,044 246,343

Engelmann spruce

Sawtimber − 15,183 − 12,715 − 27,898

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − 15,183 − 12,715 − 27,898

Limber pine

Sawtimber −−−−−−

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total −−−−−−

Lodgepole pine

Sawtimber − − 6,068 16,992 − 23,061

Poletimber −−− 6,298 − 6,298

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − − 6,068 23,290 − 29,359

Ponderosa pine

Sawtimber − − 8,207 38,853 − 47,060

Poletimber −−−−−−

Sapling/seedling − − 9,816 5,436 − 15,252

Nonstocked − − − − − −

Total − − 18,023 44,289 − 62,312

Spruce-fir

Sawtimber − 12,235 38,001 − − 50,236

Poletimber − − 5,436 − − 5,436

Sapling/seedling − − 12,715 − − 12,715

Nonstocked − − − − − −

Total − 12,235 56,152 − − 68,387

White fir

Sawtimber − 5,442 25,307 14,516 − 45,265

Poletimber −−−−−−

Sapling/seedling −−−−−−

Nonstocked − − − − − −

Total − 5,442 25,307 14,516 − 45,265

All types 

Sawtimber − 43,770 159,038 206,816 4,491 414,115

Poletimber − 8,207 36,720 254,379 59,375 358,682

Sapling/seedling − − 49,452 106,575 19,265 175,292

Nonstocked −−− 13,295 − 13,295

Total − 51,977 245,211 581,066 83,131 961,384
72 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 50−Number of growing stock trees on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - Thousand trees - - - - - - - - - - - Douglas-fir 44,704 31,604 24,058 20,012 12,117 9,779 8,023 5,885 3,407 2,296 1,415 844 671 288 499 165,603 Ponderosa pine 6,472 9,610 6,983 4,267 3,343 2,782 2,179 2,345 1,400 859 800 406 371 267 304 42,388 Lodgepole pine 88,144 65,370 40,071 21,841 12,351 5,502 2,559 1,011 521 239 74 − 12 5 − 237,700 Bristlecone pine − 181 258 90 38 65 73 33 38 34 − 8 − 6 − 825 Limber pine 4,769 3,758 2,530 1,661 469 578 586 330 134 187 111 125 24 21 83 15,364 Subalpine fir 204,603 77,811 44,188 26,517 15,961 8,121 4,662 2,644 1,498 848 534 200 183 67 65 387,902 White fir 56,209 25,156 15,242 10,554 7,267 4,046 3,268 1,912 1,511 773 514 216 193 81 170 127,111 Engelmann spruce 43,229 35,906 18,762 14,501 11,654 10,582 7,628 5,220 3,081 2,400 1,554 951 499 202 280 156,448 Blue spruce 2,769 1,329 1,603 1,033 678 336 257 182 171 56 126 46 50 41 28 8,705 Softwood total 450,899 250,724 153,696 100,477 63,876 41,791 29,236 19,562 11,760 7,691 5,128 2,796 2,004 977 1,428 1,142,045 Aspen 308,774 215,881 165,239 89,914 38,024 15,783 6,531 2,757 920 211 52 13 4 − − 844,102 Cottonwood − 301 152 − 107 45 211 57 22 129 41 75 52 35 41 1,268 Hardwood total 308,774 216,182 165,391 89,914 38,131 15,828 6,742 2,814 942 340 93 88 56 35 41 845,370 All species 759,674 466,906 319,086 190,390 102,007 57,619 35,978 22,376 12,702 8,031 5,221 2,884 2,060 1,012 1,469 1,987,415 Table 51−Number of cull and hard dead trees on nonreserved timberland by owner group, and softwoods and hardwoods, Utah, 1993. Cull trees Sound Other Owner group Species group Rough Rotten Total dead trees dead trees Total - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - National Forest Softwoods 6,082 1,791 7,873 96,038 1,476 105,386 Hardwoods 3,363 8,923 12,286 54,634 5,396 72,315 Total 9,444 10,714 20,158 150,671 6,872 177,701 Other public Softwoods 1,168 404 1,572 5,690 3,125 10,386 Hardwoods 1,007 1,009 2,016 5,040 2,151 9,208 Total 2,175 1,413 3,588 10,730 5,275 19,594 Nonindustrial private Softwoods 1,912 172 2,084 6,217 408 8,710 Hardwoods 3,685 2,570 6,255 16,520 3,096 25,870 Total 5,597 2,742 8,339 22,737 3,504 34,580 Total Softwoods 9,162 2,367 11,529 107,945 5,009 124,482 Hardwoods 8,055 12,502 20,557 76,194 10,643 107,393 Total 17,217 14,868 32,086 184,139 15,652 231,875

Number

of Trees
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 73

Table 54−Net volume of sawtimber (Scribner rule) on nonreserved timberland by 

forest type and stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ All 

Forest type Sawtimber Poletimber seedling Nonstocked classes

 - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - -

Aspen 1,520,807 1,237,420 145,823 − 2,904,050

Blue spruce 143,420 2,122 − − 145,542

Cottonwood 73,531 − 1,888 − 75,418

Douglas-fir 4,674,151 276,517 175,825 51,677 5,178,171

Engelmann spruce 3,231,791 58,831 10,264 − 3,300,886

Limber pine 187,078 6,853 − 1,823 195,754

Lodgepole pine 1,322,873 206,943 33,910 − 1,563,726

Ponderosa pine 1,585,137 32,092 40,970 67,422 1,725,621

Spruce-fir 5,014,263 415,938 83,715 − 5,513,916

White fir 1,811,229 − 38,277 5,404 1,854,909

All types 19,564,279 2,236,716 530,671 126,326 22,457,992

Table 53−Net volume of sawtimber (International 1⁄4-inch rule) on nonreserved

timberland by forest type and stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ All

Forest type Sawtimber Poletimber seedling Nonstocked classes

 - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - -

Aspen 1,779,210 1,443,662 169,559 − 3,392,431

Blue spruce 162,942 2,605 − − 165,547

Cottonwood 82,730 − 2,269 − 85,000

Douglas-fir 5,475,564 323,857 206,707 60,935 6,067,062

Engelmann spruce 3,794,076 69,273 12,141 − 3,875,489

Limber pine 216,299 7,965 − 2,030 226,294

Lodgepole pine 1,552,392 241,816 39,464 − 1,833,673

Ponderosa pine 1,822,828 37,180 47,852 77,347 1,985,207

Spruce-fir 5,867,541 483,699 96,740 − 6,447,980

White fir 2,131,908 − 45,075 6,508 2,183,490

All types 22,885,490 2,610,057 619,806 146,820 26,262,173

Table 52−Net volume of growing stock on nonreserved timberland by forest type and 

stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ All 

Forest type Sawtimber Poletimber seedling Nonstocked classes

 - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - -

Aspen 507,854 1,103,373 72,836 646 1,684,710

Blue spruce 34,624 1,105 867 − 36,596

Cottonwood 18,068 − 451 − 18,519

Douglas-fir 1,192,570 153,403 48,262 12,518 1,406,753

Engelmann spruce 869,062 27,458 2,781 − 899,301

Limber pine 48,728 5,204 − 652 54,584

Lodgepole pine 429,344 212,084 37,049 − 678,477

Ponderosa pine 382,594 16,317 10,569 15,813 425,292

Spruce-fir 1,391,603 222,947 29,733 − 1,644,283

White fir 558,010 − 10,741 1,593 570,344

All types 5,432,457 1,741,891 213,288 31,222 7,418,858

Volume
74 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 56−Net volume of sawtimber (International 1⁄4-inch rule) on 

nonreserved timberland by species and owner group, Utah, 1993.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - 

Blue spruce 311,049 − 21,932 332,980

Bristlecone pine 22,996 8,389 − 31,386

Douglas-fir 3,934,580 1,165,128 1,562,097 6,661,806

Engelmann spruce 6,298,333 24,522 344,727 6,667,583

Limber pine 279,312 34,946 52,202 366,461

Lodgepole pine 1,619,173 2,286 348,616 1,970,075

Ponderosa pine 1,644,888 263,537 339,972 2,248,397

Subalpine fir 2,957,585 71,611 457,841 3,487,037

White fir 1,539,186 129,909 239,257 1,908,353

Softwood total 18,607,102 1,700,329 3,366,646 23,674,077

Aspen 1,910,000 209,092 351,288 2,470,380

Cottonwood 13,044 21,065 83,607 117,716

Hardwood total 1,923,044 230,158 434,895 2,588,097

All species 20,530,146 1,930,487 3,801,540 26,262,173

Table 55−Net volume of growing stock on nonreserved timberland by 

species and owner group, Utah, 1993.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - -

Blue spruce 68,607 − 4,387 72,994

Bristlecone pine 5,880 1,628 − 7,508

Douglas-fir 841,493 253,635 347,574 1,442,702

Engelmann spruce 1,377,649 6,082 70,790 1,454,520

Limber pine 67,544 7,291 12,775 87,610

Lodgepole pine 631,749 559 81,047 713,356

Ponderosa pine 350,081 50,861 66,965 467,907

Subalpine fir 839,421 19,319 115,403 974,143

White fir 411,473 34,195 61,340 507,008

Softwood total 4,593,897 373,571 760,281 5,727,749

Aspen 1,156,922 121,896 385,979 1,664,797

Cottonwood 3,255 4,833 18,223 26,312

Hardwood total 1,160,178 126,729 404,202 1,691,109

All species 5,754,075 500,300 1,164,483 7,418,858
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 75 Table 58−Net volume of growing stock on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 2,534 4,798 6,369 5,439 6,645 6,784 8,337 2,918 9,718 4,352 5,240 5,014 4,847 72,994 Bristlecone pine 407 313 473 637 1,156 722 1,628 1,219 − 432 − 521 − 7,508 Douglas-fir 46,469 104,275 116,099 159,981 193,728 204,901 156,056 131,290 95,032 68,625 60,727 29,978 75,541 1,442,702 Engelmann spruce 37,643 77,403 126,074 188,936 207,475 201,228 153,176 148,040 114,080 80,079 48,840 24,793 46,753 1,454,520 Limber pine 3,111 8,922 5,361 8,617 12,488 8,798 4,783 7,689 5,926 7,548 2,141 1,717 10,507 87,610 Lodgepole pine 114,032 163,391 167,172 114,228 70,022 40,524 24,594 12,882 4,630 − 1,164 719 − 713,356 Ponderosa pine 10,511 15,614 24,749 34,177 42,820 63,367 52,053 39,899 50,222 29,910 31,246 28,081 45,257 467,907 Subalpine fir 92,286 144,537 174,487 144,435 120,269 96,987 69,636 47,853 36,215 15,426 16,220 7,039 8,752 974,143 White fir 23,256 49,275 62,567 60,495 70,170 56,617 58,735 36,394 30,943 15,668 13,929 7,294 21,665 507,008 Softwood total 330,249 568,528 683,351 716,945 724,773 679,929 528,998 428,185 346,767 222,041 179,506 105,156 213,323 5,727,749 Aspen 320,726 468,802 370,516 244,747 138,908 76,224 32,504 8,710 2,632 724 304 − − 1,664,797 Cottonwood 246 − 678 627 3,068 1,208 547 3,912 1,724 3,730 3,315 2,703 4,554 26,312 Hardwood total 320,972 468,802 371,195 245,374 141,976 77,432 33,052 12,622 4,355 4,454 3,619 2,703 4,554 1,691,109 All species 651,221 1,037,329 1,054,545 962,319 866,749 757,361 562,049 440,807 351,122 226,495 183,125 107,859 217,877 7,418,858 Table 57−Net volume of sawtimber (Scribner rule) on nonreserved timberland by species and owner group, Utah, 1993. Owner group National Other Nonindustrial Species Forest public private Total - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - Blue spruce 273,067 − 17,713 290,780 Bristlecone pine 19,705 7,104 − 26,808 Douglas-fir 3,366,809 991,360 1,331,566 5,689,735 Engelmann spruce 5,381,937 21,441 293,778 5,697,156 Limber pine 241,915 30,271 45,377 317,564 Lodgepole pine 1,379,984 1,956 297,000 1,678,940 Ponderosa pine 1,427,635 231,403 298,750 1,957,788 Subalpine fir 2,515,620 61,354 391,539 2,968,513 White fir 1,312,014 108,749 205,276 1,626,040 Softwood total 15,918,686 1,453,639 2,880,999 20,253,324 Aspen 1,623,015 177,250 300,083 2,100,347 Cottonwood 11,456 17,994 74,870 104,321 Hardwood total 1,634,471 195,244 374,953 2,204,668 All species 17,553,157 1,648,882 3,255,953 22,457,992
76 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 60−Net volume of sawtimber (Scribner rule) on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 21,655 21,066 26,785 27,549 34,229 12,573 45,652 21,512 26,682 26,309 26,767 290,780 Bristlecone pine 1,536 1,858 3,997 2,726 7,104 5,068 − 1,954 − 2,566 − 26,808 Douglas-fir 399,038 633,206 804,220 872,928 683,203 602,347 460,097 348,143 313,260 158,287 415,005 5,689,735 Engelmann spruce 450,281 742,781 839,552 821,807 636,129 654,998 530,847 387,483 245,415 130,480 257,383 5,697,156 Limber pine 16,848 29,808 48,238 35,872 20,206 33,120 26,773 35,079 10,437 8,358 52,825 317,564 Lodgepole pine 564,868 443,074 293,325 179,274 109,754 57,951 21,351 − 5,723 3,621 − 1,678,940 Ponderosa pine 59,562 119,235 178,181 281,398 241,754 189,135 240,119 143,612 149,534 136,193 219,063 1,957,788 Subalpine fir 627,369 565,925 482,385 391,450 285,943 206,732 166,592 74,648 81,890 37,099 48,481 2,968,513 White fir 203,170 231,817 274,139 217,225 218,944 133,063 115,475 59,641 52,627 28,846 91,093 1,626,040 Softwood total 2,344,327 2,788,770 2,950,821 2,830,230 2,237,267 1,894,987 1,606,907 1,072,073 885,566 531,760 1,110,618 20,253,324 Aspen (a) 996,904 583,257 326,860 140,540 37,293 11,162 3,046 1,285 − − 2,100,347 Cottonwood (a) 2,602 12,580 5,015 2,277 15,847 6,948 14,941 13,504 11,173 19,433 104,321 Hardwood total (a) 999,506 595,837 331,876 142,818 53,140 18,110 17,986 14,790 11,173 19,433 2,204,668 All species 2,344,327 3,788,276 3,546,658 3,162,105 2,380,084 1,948,126 1,625,017 1,090,059 900,356 542,932 1,130,051 22,457,992 aHardwoods are not considered sawtimber until they are 11 inches d.b.h. Table 59−Net volume of sawtimber (International 1⁄4-inch rule) on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ cllasses - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 23,728 24,716 32,495 33,942 42,081 14,852 51,431 23,709 29,133 28,441 28,452 332,980 Bristlecone pine 1,777 2,113 4,677 3,226 8,389 6,100 − 2,253 − 2,850 − 31,386 Douglas-fir 443,913 744,329 971,158 1,071,376 833,823 714,367 527,718 389,807 347,482 173,242 444,591 6,661,806 Engelmann spruce 505,295 878,912 1,020,970 1,010,447 774,095 761,678 600,315 431,454 269,382 141,001 274,034 6,667,583 Limber pine 19,379 34,796 57,016 42,677 23,994 38,861 30,800 39,914 11,628 9,335 58,060 366,461 Lodgepole pine 656,739 523,114 348,764 212,263 127,845 66,746 24,281 − 6,351 3,973 − 1,970,075 Ponderosa pine 78,736 144,959 207,849 323,923 276,119 215,091 271,581 162,194 168,562 153,240 246,142 2,248,397 Subalpine fir 702,657 670,223 585,650 482,383 348,235 243,108 189,416 83,193 90,030 40,252 51,890 3,487,037 White fir 223,582 270,029 329,406 265,600 269,952 160,221 133,729 67,191 59,066 31,697 97,879 1,908,353 Softwood total 2,655,808 3,293,190 3,557,986 3,445,837 2,704,534 2,221,023 1,829,272 1,199,715 981,634 584,031 1,201,047 23,674,077 Aspen (a) 1,164,146 691,547 387,275 165,516 43,774 13,063 3,560 1,500 − − 2,470,380 Cottonwood (a) 3,203 15,306 5,879 2,643 18,167 7,810 16,713 14,852 12,188 20,956 117,716 Hardwood total (a) 1,167,349 706,853 393,154 168,159 61,941 20,872 20,273 16,351 12,188 20,956 2,588,097 All species 2,655,808 4,460,539 4,264,839 3,838,991 2,872,693 2,282,964 1,850,144 1,219,988 997,985 596,219 1,222,003 26,262,173 aHardwoods are not considered sawtimber until they are 11 inches d.b.h.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 77 Table 62−Net volume of growing stock on nonreserved timberland by species and forest type, Utah, 1993. Forest type Blue Engelmann Limber Lodgepole Ponderosa Species Aspen spruce Cottonwood Douglas-fir spruce pine pine pine Spruce-fir White fir All types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 23,967 31,097 − 4,669 − − 291 1,041 8,077 3,853 72,994 Bristlecone pine − −−−− 313 − − 4,312 2,882 7,508 Douglas-fir 83,073 1,156 875 1,112,010 25,940 5,613 3,051 19,735 93,369 97,880 1,442,702 Engelmann spruce 41,337 638 − 24,456 753,150 8,403 42,196 822 580,065 3,452 1,454,520 Limber pine 3,414 − − 30,657 3,844 30,244 − 2,413 6,611 10,427 87,610 Lodgepole pine 21,940 − − 8,081 35,598 − 598,542 − 49,195 − 713,356 Ponderosa pine 20,712 751 − 27,031 462 2,367 − 388,466 2,628 25,491 467,907 Subalpine fir 131,424 − − 61,012 40,279 3,040 23,933 1,501 712,269 685 974,143 White fir 42,117 − − 56,022 3,325 2,326 − 6,722 5,822 390,674 507,008 Softwood total 367,984 33,642 875 1,323,937 862,598 52,307 668,013 420,701 1,462,349 535,344 5,727,749 Aspen 1,315,833 2,954 − 82,816 36,703 2,277 10,464 3,362 175,388 35,000 1,664,797 Cottonwood 893 − 17,644 − −− − 1,229 6,545 − 26,312 Hardwood total 1,316,726 2,954 17,644 82,816 36,703 2,277 10,464 4,592 181,934 35,000 1,691,109 All species 1,684,710 36,596 18,519 1,406,753 899,301 54,584 678,477 425,292 1,644,283 570,344 7,418,858 Table 61−Net volume of timber on nonreserved timberland by class of timber, and softwoods and hardwoods, Utah, 1993. Class of timber Softwoods Hardwoods Total - - - - - - - Thousand cubic feet - - - - - - Sawtimber trees Sawlog portion 4,319,982 394,808 4,714,790 Upper-stem portion 508,990 135,333 644,323 Total 4,828,972 530,141 5,359,113 Poletimber trees 898,777 1,160,968 2,059,745 All growing-stock trees 5,727,749 1,691,109 7,418,858 Rough cull trees 36,875 12,920 49,795 Rotten cull trees 18,388 25,034 43,422 Salvable dead trees 872,720 219,796 1,092,515 All timber 6,655,732 1,948,859 8,604,590
78 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 64−Net volume of sawtimber (Scribner rule) on nonreserved timberland by species and forest type, Utah, 1993. Forest type Blue Engelmann Limber Lodgepole Ponderosa Species Aspen spruce Cottonwood Douglas-fir spruce pine pine pine Spruce-fir White fir All types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 88,357 131,433 − 17,814 −− − 4,199 34,949 14,028 290,780 Bristlecone pine − − − − −− − − 16,248 10,560 26,808 Douglas-fir 313,967 4,846 4,848 4,404,283 97,275 21,505 12,514 66,743 382,305 381,449 5,689,735 Engelmann spruce 155,748 2,476 − 99,544 2,894,257 32,593 148,199 3,116 2,348,964 12,258 5,697,156 Limber pine 14,794 − − 111,404 13,600 112,791 − 8,552 18,898 37,524 317,564 Lodgepole pine 51,752 − − 5,478 128,874 − 1,350,119 − 142,716 − 1,678,940 Ponderosa pine 93,686 3,633 − 113,741 1,952 10,281 − 1,616,794 11,793 105,909 1,957,788 Subalpine fir 414,828 − − 199,862 95,279 9,706 48,883 5,092 2,192,081 2,783 2,968,513 White fir 122,620 − − 182,082 13,089 7,396 − 16,161 20,893 1,263,799 1,626,040 Softwood total 1,255,754 142,387 4,848 5,134,207 3,244,327 194,272 1,559,716 1,720,655 5,168,848 1,828,310 20,253,324 Aspen 1,645,695 3,155 − 43,963 56,559 1,482 4,010 − 318,884 26,599 2,100,347 Cottonwood 2,602 − 70,570 − −− − 4,965 26,184 − 104,321 Hardwood total 1,648,296 3,155 70,570 43,963 56,559 1,482 4,010 4,965 345,068 26,599 2,204,668 All species 2,904,050 145,542 75,418 5,178,171 3,300,886 195,754 1,563,726 1,725,621 5,513,916 1,854,909 22,457,992 Table 63−Net volume of sawtimber (International 1⁄4-inch rule) on nonreserved timberland by species and forest type, Utah, 1993. Forest type Blue Engelmann Limber Lodgepole Ponderosa Species Aspen spruce Cottonwood Douglas-fir spruce pine pine pine Spruce-fir White fir All types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 101,266 148,863 − 21,128 −− − 5,139 39,907 16,677 332,980 Bristlecone pine − − − − −− − − 18,940 12,446 31,386 Douglas-fir 362,502 5,891 5,177 5,162,254 112,690 24,667 14,326 77,004 442,937 454,358 6,661,806 Engelmann spruce 181,699 2,919 − 116,175 3,400,047 37,768 174,715 3,619 2,736,416 14,225 6,667,583 Limber pine 16,748 − − 128,216 15,236 130,384 − 10,131 21,869 43,877 366,461 Lodgepole pine 61,066 − − 6,270 151,325 − 1,583,764 − 167,651 − 1,970,075 Ponderosa pine 106,452 4,089 − 129,821 2,266 11,824 − 1,858,803 13,489 121,652 2,248,397 Subalpine fir 483,852 − − 237,874 112,028 11,270 56,196 5,862 2,576,550 3,403 3,487,037 White fir 140,893 − − 213,839 15,190 8,663 − 18,960 25,137 1,485,670 1,908,353 Softwood total 1,454,478 161,762 5,177 6,015,576 3,808,783 224,577 1,829,000 1,979,519 6,042,896 2,152,308 23,674,077 Aspen 1,934,750 3,785 − 51,486 66,706 1,717 4,672 − 376,081 31,182 2,470,380 Cottonwood 3,203 − 79,823 − −− − 5,688 29,002 − 117,716 Hardwood total 1,937,953 3,785 79,823 51,486 66,706 1,717 4,672 5,688 405,083 31,182 2,588,097 All species 3,392,431 165,547 85,000 6,067,062 3,875,489 226,294 1,833,673 1,985,207 6,447,980 2,183,490 26,262,173
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 79

Table 66−Net annual growth of sawtimber (International 1⁄4-inch rule)

on nonreserved timberland by species and owner group, 

Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

- - - - - - - - - - - Thousand board feet - - - - - - - - - -

Blue spruce 3,420 − 478 3,898

Bristlecone pine 373 99 − 472

Douglas-fir 58,112 −1,408 35,443 92,148

Engelmann spruce 69,498 4,913 1,763 76,174

Limber pine 1,645 422 875 2,943

Lodgepole pine 19,647 95 −3 19,739

Ponderosa pine 42,081 −130 7,098 49,050

Subalpine fir −12,667 3,663 −3,074 −12,077

White fir 26,171 −488 2,555 28,238

Softwood total 208,281 7,166 45,137 260,584

Aspen 58,005 6,625 19,724 84,354

Cottonwood 116 −2,567 −1,932 −4,383

Hardwood total 58,120 4,058 17,792 79,971

All species 266,402 11,224 62,929 340,555

Table 65−Net annual growth of growing stock on nonreserved 

timberland by species and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

- - - - - - - - - - Thousand cubic feet - - - - - - - - - - -

Blue spruce 996 − 93 1,089

Bristlecone pine 92 19 − 111

Douglas-fir 10,340 932 7,308 18,580

Engelmann spruce 12,957 105 247 13,309

Limber pine 675 76 230 981

Lodgepole pine 2,907 18 −151 2,774

Ponderosa pine 8,453 −3 1,387 9,837

Subalpine fir −6,467 785 −782 −6,464

White fir 6,070 −125 634 6,578

Softwood total 36,022 1,806 8,966 46,794

Aspen 18,399 1,980 12,015 32,395

Cottonwood 40 −622 −632 −1,213

Hardwood total 18,439 1,359 11,384 31,181

All species 54,462 3,164 20,349 77,975

Growth
80 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 68−Net annual growth of growing stock on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 461 198 227 186 115 147 −46 61 95 −98 −170 −127 40 1,089 Bristlecone pine 13 11 9 9 22 8 19 10 − 6 − 6 − 111 Douglas-fir 3,724 3,998 2,943 2,477 2,138 2,142 884 183 606 −202 −249 139 −204 18,580 Engelmann spruce 2,353 2,120 2,096 2,556 2,202 1,696 459 51 116 −63 79 −221 −136 13,309 Limber pine 325 260 20 29 210 109 58 59 58 −6 26 16 −184 981 Lodgepole pine 7,818 657 −941 168 −1,361 −1,438 −1,574 −270 39 −334 6 3 − 2,774 Ponderosa pine 1,336 1,064 1,517 1,295 1,288 1,624 524 615 621 100 312 45 −505 9,837 Subalpine fir 6,440 535 −2,874 −1,661 −2,615 −1,864 −934 −1,534 −631 −752 −148 46 −470 −6,464 White fir 2,050 1,718 1,616 496 542 −29 267 51 −41 −106 111 −73 −23 6,578 Softwood total 24,519 10,561 4,612 5,557 2,540 2,395 −343 −774 862 −1,455 −33 −166 −1,483 46,794 Aspen 18,933 8,075 4,567 639 393 299 −331 −148 37 −71 1 − − 32,395 Cottonwood −27 −41 −203 −97 30 17 −113 −139 −267 −251 50 −93 −80 −1,213 Hardwood total 18,907 8,034 4,364 541 423 316 −444 −286 −230 −322 51 −93 −80 31,181 All species 43,426 18,596 8,976 6,098 2,963 2,711 −786 −1,060 632 −1,777 18 −259 −1,563 77,975 Table 67−Net annual growth of sawtimber (Scribner rule) on nonreserved timberland by species and owner group, Utah, 1992. Owner group National Other Nonindustrial Species Forest public private Total - - - - - - - - - - - Thousand board feet - - - - - - - - - - Blue spruce 2,980 − 376 3,356 Bristlecone pine 323 94 − 416 Douglas-fir 48,982 −2,502 29,466 75,945 Engelmann spruce 57,975 4,761 1,372 64,108 Limber pine 1,366 376 745 2,486 Lodgepole pine 17,173 79 −151 17,101 Ponderosa pine 36,790 −85 6,348 43,054 Subalpine fir −11,304 3,098 −2,948 −11,154 White fir 21,546 −577 1,956 22,924 Softwood total 175,831 5,242 37,163 218,237 Aspen 49,800 5,714 17,015 72,530 Cottonwood 108 −2,206 −1,660 −3,757 Hardwood total 49,909 3,509 15,356 68,773 All species 225,740 8,751 52,519 287,010
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 81 Table 70−Net annual growth of sawtimber (Scribner rule) on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 2,338 812 483 599 −171 299 562 −409 −767 −633 242 3,356 Bristlecone pine 39 41 93 39 94 49 − 31 − 30 − 416 Douglas-fir 33,245 12,288 10,506 9,978 4,693 2,029 4,197 −283 −852 932 −788 75,945 Engelmann spruce 30,323 11,516 9,469 7,100 2,349 1,497 1,966 531 842 −938 −546 64,108 Limber pine 239 339 1,087 549 290 305 312 35 142 84 −897 2,486 Lodgepole pine 34,259 3,042 −4,645 −5,966 −7,081 −1,140 207 −1,626 33 18 − 17,101 Ponderosa pine 11,562 7,134 6,873 8,438 2,915 3,149 3,085 541 1,538 263 −2,444 43,054 Subalpine fir 29,565 −4,896 −10,013 −7,405 −3,763 −5,957 −2,336 −3,450 −583 293 −2,609 −11,154 White fir 17,785 2,765 2,238 −361 564 5 −107 −232 508 −263 21 22,924 Softwood total 159,356 33,042 16,092 12,970 −110 236 7,886 −4,861 861 −214 −7,022 218,237 Aspen (a) 70,677 2,469 1,509 −1,340 −645 152 −297 5 − − 72,530 Cottonwood (a) −376 134 69 −470 −585 −1,061 −986 216 −361 −335 −3,757 Hardwood total (a) 70,301 2,603 1,577 −1,810 −1,230 −909 −1,284 221 −361 −335 68,773 All species 159,356 103,343 18,695 14,548 −1,920 −994 6,977 −6,144 1,082 −575 −7,357 287,010 aHardwoods are not considered sawtimber until they are 11 inches d.b.h. Table 69−Net annual growth of sawtimber (International 1⁄4-inch rule) on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 2,590 1,035 616 762 −213 337 576 −484 −876 −694 249 3,898 Bristlecone pine 47 50 112 47 99 52 − 33 − 32 − 472 Douglas-fir 39,462 16,087 13,862 12,965 5,829 1,827 4,129 −710 −1,191 904 −1,014 92,148 Engelmann spruce 35,240 14,977 12,343 9,115 2,714 1,039 1,489 250 758 −1,095 −655 76,174 Limber pine 308 434 1,312 653 326 326 332 12 152 90 −1,002 2,943 Lodgepole pine 39,860 3,821 −5,468 −7,334 −8,243 −1,367 221 −1,807 35 20 − 19,739 Ponderosa pine 13,950 7,952 7,676 9,438 3,216 3,515 3,451 594 1,721 285 −2,748 49,050 Subalpine fir 34,371 −4,351 −11,468 −8,781 −4,485 −7,365 −2,903 −3,912 −694 301 −2,788 −12,077 White fir 20,795 4,004 3,136 −216 862 40 −191 −383 518 −301 −25 28,238 Softwood total 186,623 44,010 22,120 16,648 103 −1,597 7,103 −6,407 421 −458 −7,983 260,584 Aspen (a) 82,476 2,758 1,670 −1,618 −765 175 −348 6 − − 84,354 Cottonwood (a) −486 144 74 −548 −686 −1,213 −1,126 227 −404 −365 −4,383 Hardwood total (a) 81,990 2,902 1,744 −2,166 −1,452 −1,037 −1,474 232 −404 −365 79,971 All species 186,623 126,000 25,022 18,393 −2,063 −3,048 6,066 −7,880 654 −862 −8,348 340,555 aHardwoods are not considered sawtimber until they are 11 inches d.b.h.
82 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 72−Annual mortality of sawtimber (International 1⁄4-inch rule)

on nonreserved timberland by species and owner group, 

Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - Thousand board feet - - - - - - - - - 

Blue spruce 3,832 − − 3,832

Bristlecone pine −− − −

Douglas-fir 31,200 28,130 4,164 63,493

Engelmann spruce 44,400 − 4,411 48,811

Limber pine 2,953 − − 2,953

Lodgepole pine 48,198 − 5,293 53,491

Ponderosa pine 7,021 4,568 − 11,589

Subalpine fir 114,211 437 22,804 137,452

White fir 21,751 2,965 3,750 28,466

Softwood total 273,565 36,100 40,421 350,086

Aspen 21,565 − 3,973 25,538

Cottonwood − 2,763 2,886 5,649

Hardwood total 21,565 2,763 6,859 31,187

All species 295,130 38,863 47,281 381,274

Table 71−Annual mortality of growing stock on nonreserved 

timberland by species and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - Thousand cubic feet - - - - - - - - -

Blue spruce 708 − − 708

Bristlecone pine −− − −

Douglas-fir 6,624 5,327 1,107 13,058

Engelmann spruce 9,065 − 924 9,988

Limber pine 756 − − 756

Lodgepole pine 14,649 − 1,224 15,873

Ponderosa pine 1,542 837 − 2,379

Subalpine fir 31,362 283 4,921 36,566

White fir 5,349 748 1,122 7,219

Softwood total 70,054 7,195 9,298 86,546

Aspen 11,801 658 3,607 16,066

Cottonwood − 671 851 1,521

Hardwood total 11,801 1,329 4,457 17,587

All species 81,855 8,524 13,755 104,134

Mortality
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 83 Table 74−Annual mortality of growing stock on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce −− − − − − 163 − − 132 227 185 − 708 Bristlecone pine − − − − − − − − − − − −− − Douglas-fir 500 310 855 1,663 1,967 1,560 1,642 1,483 492 873 845 159 709 13,058 Engelmann spruce 110 200 809 1,085 1,131 1,122 1,412 1,333 827 741 317 436 466 9,988 Limber pine 56 74 136 105 −−−−− 114 − − 272 756 Lodgepole pine 797 3,270 3,815 1,414 2,243 1,810 1,827 363 − 334 − −− 15,873 Ponderosa pine − 178 35 174 78 − 572 92 − 214 − 191 846 2,379 Subalpine fir 2,313 4,957 8,238 5,375 5,107 3,607 2,077 2,174 1,009 886 286 − 536 36,566 White fir 403 466 712 1,179 1,140 1,122 750 379 397 294 − 146 231 7,219 Softwood total 4,179 9,457 14,600 10,995 11,665 9,221 8,443 5,824 2,724 3,587 1,675 1,117 3,061 86,546 Aspen 3,980 4,373 2,394 2,870 1,168 394 581 228 − 77 − −− 16,066 Cottonwood 36 41 216 105 − − 120 206 285 291 − 121 101 1,521 Hardwood total 4,016 4,414 2,610 2,975 1,168 394 701 434 285 369 − 121 101 17,587 All species 8,194 13,871 17,210 13,970 12,833 9,614 9,144 6,258 3,009 3,955 1,675 1,237 3,161 104,134 Table 73−Annual mortality of sawtimber (Scribner rule) on nonreserved timberland by species and owner group, Utah, 1992. Owner group National Other Nonindustrial Species Forest public private Total - - - - - - - - - Thousand board feet - - - - - - - - - - Blue spruce 3,400 − − 3,400 Bristlecone pine −− − − Douglas-fir 26,831 24,080 3,424 54,335 Engelmann spruce 38,007 − 3,847 41,854 Limber pine 2,647 − − 2,647 Lodgepole pine 41,164 − 4,665 45,829 Ponderosa pine 6,172 4,054 − 10,226 Subalpine fir 97,208 369 19,500 117,076 White fir 18,322 2,573 3,176 24,071 Softwood total 233,751 31,076 34,612 299,439 Aspen 18,391 − 3,383 21,774 Cottonwood − 2,388 2,554 4,942 Hardwood total 18,391 2,388 5,937 26,716 All species 252,142 33,464 40,549 326,155
84 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 76−Annual mortality of sawtimber (Scribner rule) on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce −−−− 663 − − 617 1,125 996 − 3,400 Bristlecone pine − − − − − − − − − −− − Douglas-fir 2,821 6,748 8,121 6,664 7,252 6,899 2,403 4,358 4,386 859 3,825 54,335 Engelmann spruce 2,898 4,395 4,533 4,532 5,908 5,963 3,612 3,555 1,614 2,274 2,569 41,854 Limber pine 458 274 −−−−− 550 − − 1,365 2,647 Lodgepole pine 11,997 5,193 9,222 7,840 8,332 1,620 − 1,626 − −− 45,829 Ponderosa pine 84 637 331 − 2,703 422 − 1,012 − 909 4,126 10,226 Subalpine fir 29,955 21,050 20,424 14,469 8,616 9,183 4,588 4,299 1,471 − 3,022 117,076 White fir 2,458 4,533 4,540 4,300 2,819 1,406 1,403 1,036 − 606 970 24,071 Softwood total 50,672 42,830 47,172 37,805 36,293 25,493 12,005 17,052 8,596 5,644 15,877 299,439 Aspen (a) 11,507 4,912 1,646 2,407 977 − 325 − −− 21,774 Cottonwood (a) 414 − − 497 836 1,133 1,147 − 487 428 4,942 Hardwood total (a) 11,921 4,912 1,646 2,904 1,813 1,133 1,472 − 487 428 26,716 All species 50,672 54,751 52,084 39,451 39,197 27,307 13,138 18,525 8,596 6,131 16,305 326,155 aHardwoods are not considered sawtimber until they are 11 inches d.b.h. Table 75−Annual mortality of sawtimber (International 1⁄4-inch rule) on nonreserved timberland by species and diameter class, Utah, 1992. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce −−−− 825 − − 697 1,243 1,066 − 3,832 Bristlecone pine − − − − − − − − − −− − Douglas-fir 3,106 8,012 9,779 8,163 8,735 8,141 2,739 4,910 4,846 930 4,132 63,493 Engelmann spruce 3,277 5,290 5,487 5,565 7,151 6,889 4,223 3,970 1,760 2,467 2,733 48,811 Limber pine 533 305 −−−−− 613 − − 1,501 2,953 Lodgepole pine 13,800 6,106 10,965 9,362 9,576 1,876 − 1,807 − −− 53,491 Ponderosa pine 95 762 384 − 3,070 480 − 1,144 − 1,025 4,630 11,589 Subalpine fir 33,848 24,914 24,739 17,780 10,381 10,961 5,233 4,779 1,604 − 3,213 137,452 White fir 2,681 5,295 5,522 5,250 3,451 1,684 1,673 1,215 − 652 1,042 28,466 Softwood total 57,340 50,683 56,876 46,120 43,188 30,032 13,867 19,135 9,454 6,141 17,252 350,086 Aspen (a) 13,381 5,829 1,955 2,845 1,148 − 380 − −− 25,538 Cottonwood (a) 527 − − 577 960 1,289 1,298 − 536 462 5,649 Hardwood total (a) 13,908 5,829 1,955 3,422 2,108 1,289 1,678 − 536 462 31,187 All species 57,340 64,590 62,705 48,075 46,610 32,140 15,156 20,813 9,454 6,677 17,714 381,274 aHardwoods are not considered sawtimber until they are 11 inches d.b.h.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 85

Table 78−Annual mortality of sawtimber (International 1⁄4-inch rule) on nonreserved timberland by species and cause of

 death, Utah, 1992.

 Cause of death

 Human 

Species Insects Disease Fire Animal Weather Suppression Unknown caused Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Blue spruce 2,147 1,066 −−− − 619 − 3,832

Bristlecone pine −−−−− − −− −

Douglas-fir 42,064 14,487 605 − 1,129 − 5,208 − 63,493

Engelmann spruce 32,415 6,315 2,063 − 2,392 − 5,626 − 48,811

Limber pine 2,419 533 −−− − −− 2,953

Lodgepole pine 39,133 4,086 885 374 1,860 − 7,153 − 53,491

Ponderosa pine 7,483 2,411 1,215 − 480 − −− 11,589

Subalpine fir 51,943 53,020 472 − 11,907 − 19,780 329 137,452

White fir 8,886 12,865 − − 1,538 − 5,177 − 28,466

Softwood total 186,489 94,783 5,240 374 19,307 − 43,564 329 350,086

Aspen 1,760 19,124 − − 2,635 − 1,606 413 25,538

Cottonwood − − 2,236 527 960 − 1,926 − 5,649

Hardwood total 1,760 19,124 2,236 527 3,595 − 3,532 413 31,187

All species 188,249 113,908 7,477 901 22,902 − 47,096 742 381,274

Table 77−Annual mortality of growing stock on nonreserved timberland by species and cause of death, Utah, 1992.

 Cause of death 

 Human 

Species Insects Disease Fire Animal Weather Suppression Unknown caused Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Blue spruce 410 185 −−− − 113 − 708

Bristlecone pine −−−−− − −− −

Douglas-fir 8,447 2,966 257 − 378 − 961 49 13,058

Engelmann spruce 6,481 1,284 413 − 466 − 1,186 158 9,988

Limber pine 546 210 −−− − −− 756

Lodgepole pine 12,504 1,086 177 109 454 − 1,543 − 15,873

Ponderosa pine 1,412 468 293 − 92 − − 115 2,379

Subalpine fir 13,549 14,332 250 − 3,189 73 4,854 319 36,566

White fir 2,274 3,374 − − 349 − 1,177 45 7,219

Softwood total 45,622 23,905 1,391 109 4,928 73 9,833 686 86,546

Aspen 1,308 10,668 178 55 1,068 − 2,565 224 16,066

Cottonwood − − 530 105 206 − 680 − 1,521

Hardwood total 1,308 10,668 707 160 1,274 − 3,246 224 17,587

All species 46,930 34,572 2,098 269 6,202 73 13,079 910 104,134
86 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 79−Annual mortality of sawtimber (Scribner rule) on nonreserved timberland by species and cause of death,

 Utah, 1992.

 Cause of death

 Human 

Species Insects Disease Fire Animal Weather Suppression Unknown caused Total 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

Blue spruce 1,844 996 −−− − 561 − 3,400

Bristlecone pine −−−−− − −− −

Douglas-fir 35,921 12,423 537 − 930 − 4,524 − 54,335

Engelmann spruce 27,792 5,534 1,681 − 2,066 − 4,782 − 41,854

Limber pine 2,189 458 −−− − −− 2,647

Lodgepole pine 33,489 3,477 744 328 1,577 − 6,215 − 45,829

Ponderosa pine 6,601 2,131 1,072 − 422 − −− 10,226

Subalpine fir 43,925 45,251 396 − 10,235 − 16,963 306 117,076

White fir 7,425 10,789 − − 1,398 − 4,459 − 24,071

Softwood total 159,186 81,059 4,430 328 16,628 − 37,503 306 299,439

Aspen 1,516 16,312 − − 2,215 − 1,381 350 21,774

Cottonwood − − 1,974 414 836 − 1,718 − 4,942

Hardwood total 1,516 16,312 1,974 414 3,051 − 3,099 350 26,716

All species 160,702 97,371 6,405 741 19,679 − 40,601 656 326,155
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 87

Table 80−Removals from nonreserved timberland by species and product, Utah, 1992.

Product

Excelsior Posts House Logging All

Species Sawlogs fiberwood & poles logs Fuelwood residue products

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - Cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Douglas-fir 410,649 − − 17,223 − 23,254 451,126

Ponderosa pine 643,259 − − 18,965 − 35,374 697,598

Lodgepole pine 2,496,790 − 192,614 144,559 24,950 186,727 3,045,640

Spruce 3,579,726 − 14,970 22,061 − 200,538 3,817,295

True fir 586,751 −−−− 31,267 618,018

Cottonwood − −−− 165,668 − 165,668

Aspen 33,285 580,559 − − − 32,657 646,501

 Total species 7,750,460 580,559 207,584 202,808 190,618 509,817 9,441,846

- - - - - - - - - - - - - - - - - - - - Board feet, International 1⁄4-inch rule - - - - - - - - - - - - - - - - - - - - - 

Douglas-fir 2,203,242 − − 92,407 − 32,439 2,328,088

Ponderosa pine 3,451,261 − − 101,752 − 50,206 3,603,219

Lodgepole pine 13,395,958 − − 775,599 133,864 200,250 14,505,671

Spruce 19,206,204 − − 118,365 − 273,065 19,597,634

True fir 3,2148,081 −−−− 44,484 3,192,565

Cottonwood − −−− 888,854 − 888,854

Aspen 178,585 3,114,856 − − − 46,538 3,339,979

 Total species 41,583,331 3,114,856 − 1,088,123 1,022,718 646,982 47,456,010

- - - - - - - - - - - - - - - - - - - - - - - - Board feet, Scribner rule - - - - - - - - - - - - - - - - - - - - - - - - - 

Douglas-fir 1,880,862 − − 78,886 − 27,692 1,987,440

Ponderosa pine 2,946,270 − − 86,864 − 42,859 3,075,993

Lodgepole pine 11,435,853 − − 662,113 114,277 170,950 12,383,193

Spruce 16,395,940 − − 101,045 − 233,110 16,730,095

True fir 2,789,289 −−−− 37,975 2,725,427

Cottonwood − −−− 758,796 − 758,796

Aspen 152,454 2,659,088 −−− 39,728 2,851,270

 Total species 35,498,831 2,659,088 − 928,908 873,073 552,314 40,512,214

Removals
88 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 81−Removals from nonreserved timberland by species and owner group, Utah, 1992.

Owner group

Other owners 

National Other Nonindustrial Total other All

Species Forest public private owners owners

- - - - - - - - - - - - - - - - - - - - Cubic feet - - - - - - - - - - - - - - - - - - - - - - - -

Douglas-fir 277,571 4,936 168,619 173,555 451,126

Ponderosa pine 312,290 15,496 369,811 385,307 697,597

Lodgepole pine 2,792,934 231 252,476 252,707 3,045,641

Spruce 2,779,585 7,558 1,030,153 1,037,711 3,817,296

True fir 388,927 − 229,091 229,091 618,018

Cottonwood − − 165,668 165,668 165,668

Aspen 29,609 611,390 5,503 616,893 646,502

 Total species 6,580,916 639,611 2,221,321 2,860,932 9,441,848

- - - - - - - - - - - Board feet, International 1⁄4-inch rule - - - - - - - - - - - - - - -

Douglas-fir 1,432,021 25,271 870,795 896,066 2,328,087

Ponderosa pine 1,613,130 80,025 1,910,061 1,990,089 3,603,219

Lodgepole pine 13,208,249 − 1,297,422 1,297,422 14,505,671

Spruce 14,241,241 38,959 5,317,432 5,356,391 19,597,632

True fir 2,009,042 − 1,183,523 1,183,523 3,192,565

Cottonwood − − 888,854 888,854 888,854

Aspen 152,679 3,158,871 28,430 28,430 3,339,980

 Total species 32,656,362 3,303,126 11,496,520 14,799,646 47,456,008

- - - - - - - - - - - - - - - Board feet, Scribner rule - - - - - - - - - - - - - - - - - - -

Douglas-fir 1,222,487 21,573 743,380 764,953 1,987,440

Ponderosa pine 1,377,096 68,315 1,630,582 1,698,897 3,075,993

Lodgepole pine 11,275,610 − 1,107,583 1,107,583 12,383,193

Spruce 12,157,454 33,259 4,539,382 4,572,641 16,730,095

True fir 1,715,077 − 1,010,350 1,010,350 2,725,427

Cottonwood − − 758,796 758,796 758,796

Aspen 130,339 2,696,663 24,270 2,720,933 2,851,272

 Total species 27,878,063 2,819,810 9,814,343 12,634,153 40,512,216
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 89

Table 82−Removals from nonreserved timberland by product and owner group, Utah, 1992.

Owner group

Other owners 

National Other Nonindustrial Total other All

Product Forest public private owners owners

- - - - - - - - - - - - - - - - - - - - - Cubic feet - - - - - - - - - - - - - - - - - - - - - - -

Sawlogs 5,815,071 25,351 1,910,039 1,935,390 7,750,461

Excelsior fiberwood − 580,559 − 580,559 580,559

Posts & poles 207,584 − − − 207,584

House logs 164,105 1,161 37,543 38,704 202,809

 Total products 6,186,760 607,071 1,947,582 2,554,653 8,741,413

Fuelwood 22,954 − 167,664 167,664 190,618

Logging residue 371,202 32,540 106,075 138,615 509,817

 Total removals 6,580,916 639,611 2,221,321 2,860,932 9,441,848

- - - - - - - - - - - - - Board feet, International 1⁄4-inch rule - - - - - - - - - - - - -

Sawlogs 31,199,438 136,015 10,247,877 10,383,892 41,583,330

Excelsior fiberwood − 3,114,856 − 3,114,856 3,114,856

Posts & poles − − − − −

House logs 880,466 6,230 201,427 207,657 1,088,123

 Total products 32,079,904 3,257,101 10,449,304 13,706,405 45,786,309

Fuelwood 123,154 − 899,563 899,563 1,022,717

Logging residue 453,303 46,024 147,653 193,677 646,980

 Total removals 32,656,361 3,303,125 11,496,520 14,799,645 47,456,006

- - - - - - - - - - - - - - - - Board feet, Scribner rule - - - - - - - - - - - - - - - - -

Sawlogs 26,634,317 116,114 8,748,401 8,864,515 35,498,832

Excelsior fiberwood − 2,659,088 − 2,659,088 2,659,088

Posts & poles − − − − −

House logs 751,636 5,318 171,954 177,272 928,908

 Total products 27,385,953 2,780,520 8,920,355 11,700,875 39,086,828

Fuelwood 105,134 − 767,938 767,938 873,072

Logging residue 386,975 39,290 126,049 165,339 552,314

 Total removals 27,878,062 2,819,810 9,814,342 12,634,152 40,512,214
90 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 83−Area of nonreserved woodland by forest type and owner group, 

Utah, 1993.

 Owner group

 National Other Nonindustrial

Forest type Forest public private Total

 - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - -

Juniper 139,388 915,004 302,075 1,356,467

Maple woodland 46,292 7,335 82,877 136,504

Mountain mahogany 152,863 89,145 83,191 325,200

Oak 273,794 65,003 395,183 733,980

Pinyon-juniper 1,221,136 5,428,712 872,640 7,522,489

All types 1,833,474 6,505,200 1,735,965 10,074,640

Nonreserved Woodland

Area
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 91 Table 84−Number of trees on nonreserved woodland by species and diameter class, Utah, 1993. Diameter class (inches at root collar) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Douglas-fir 628 696 967 267 618 390 376 263 140 177 111 − − −− 4,634 Limber pine − − 125 −− − 30 137 − − − − − −− 291 Ponderosa pine − − 51 110 51 − 93 − 53 − − − − −− 358 Rocky Mountain junipera 9,145 4,186 4,574 4,138 2,812 1,756 857 607 674 336 482 −−− 59 29,627 Singleleaf pinyona 105,694 49,105 27,525 17,477 10,722 5,659 3,746 2,285 962 442 314 − − 110 − 224,040 Twoneedle pinyona 256,606 135,088 96,586 70,534 48,262 35,673 20,691 12,552 7,436 3,980 2,110 1,808 893 648 490 693,356 Utah junipera 184,764 101,546 104,706 94,310 83,550 73,441 69,346 50,873 38,662 27,252 16,550 11,739 9,907 4,914 10,353 881,913 White fir 416 − 139 100 68 129 32 − − − − − − − − 883 Softwood total 557,253 290,622 234,674 186,935 146,083 117,047 95,169 66,717 47,927 32,187 19,567 13,547 10,800 5,672 10,901 1,835,101 Aspen 2,508 484 197 87 175 305 44 44 − − − − − −− 3,844 Bigtooth maplea 136,646 35,926 15,407 4,057 1,905 1,128 819 178 350 − − − − −− 196,416 Cottonwood − − 93 406 279 220 −−−− 93 − − −− 1,091 Curlleaf mtn. mahoganya 28,104 19,015 21,496 16,615 11,942 6,778 3,050 1,019 1,313 353 126 156 − −− 109,967 Gambel oaka 1,121,297 221,093 53,918 9,126 1,630 297 − 94 − − − − − −− 1,407,455 Rocky Mountain maplea 26,935 6,532 2,275 862 505 121 60 − − − − − − −− 37,290 True mtn. mahoganya 723 363 251 272 91 − − − − − − − − −− 1,700 Hardwood total 1,316,213 283,414 93,637 31,426 16,526 8,850 3,973 1,334 1,663 353 218 156 − − − 1,757,763 All species 1,873,466 574,035 328,311 218,361 162,609 125,897 99,142 68,051 49,589 32,540 19,786 13,703 10,800 5,672 10,901 3,592,864 aDiameter taken at root collar rather than at breast height.

Number of trees
92 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 85−Net volume on nonreserved woodland by forest type and owner group, Utah, 1993. Owner group National Other Nonindustrial Forest type Forest public private Total - - - - - - - - - - Thousand cubic feet - - - - - - - - - - Juniper 82,559 442,792 125,260 650,612 Maple woodland 38,794 7,709 75,729 122,232 Mountain mahogany 74,888 49,035 40,472 164,396 Oak 97,186 15,870 97,166 210,223 Pinyon-juniper 964,609 3,677,535 586,079 5,228,223 All types 1,258,036 4,192,941 924,707 6,375,684 Table 86−Net volume on nonreserved woodland by species and diameter class, Utah, 1993. Diameter class All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Douglas-fir (a) 851 762 2,941 3,678 5,607 5,612 4,788 7,244 4,808 − − −− 36,291 Limber pine (a) 161 −−− 517 3,194 − − − − − −− 3,873 Ponderosa pine (a) 64 414 204 −−− 1,181 − − − − −− 1,863 Rocky Mountain juniperb 1,384 4,109 7,903 9,892 12,398 7,840 7,590 10,909 7,373 11,053 −−− 2,450 82,903 Singleleaf pinyonb 17,509 34,548 52,717 60,479 51,449 47,920 35,737 19,569 12,839 10,901 − − 5,517 − 349,185 Twoneedle pinyonb 47,564 109,669 185,419 230,104 292,106 236,822 197,707 149,524 97,289 61,200 67,663 43,703 32,397 40,268 1,791,436 Utah juniperb 28,656 80,864 150,056 228,505 309,699 404,754 401,906 406,349 346,916 260,835 227,075 233,080 129,422 432,505 3,640,622 White fir (a) 160 290 316 1,075 − − − − − − − − − 1,841 Softwood total 95,114 230,426 397,562 532,441 670,405 703,461 651,746 592,320 471,662 348,798 294,738 276,783 167,336 475,223 5,908,014 Aspen (a) 138 275 1,227 4,345 858 − − − − − − −− 6,844 Bigtooth mapleb 21,713 28,045 16,554 11,557 10,146 12,591 3,329 10,990 − − − − −− 114,924 Cottonwood (a) − 124 − 233 − − − − − − − −− 357 Curlleaf mtn. mahoganyb 5,217 14,503 21,945 27,492 22,778 15,559 7,022 12,151 4,318 1,957 2,936 − −− 135,878 Gambel oakb 78,202 69,014 29,733 7,904 2,688 − 1,627 − − − − − −− 189,168 Rocky Mountain mapleb 3,512 4,796 4,367 4,808 1,426 898 − − − − − − −− 19,807 True mtn. mahoganyb 93 175 271 154 − − − − − − − − −− 693 Hardwood total 108,737 116,672 73,268 53,141 41,615 29,906 11,978 23,142 4,318 1,957 2,936 − − − 467,670 All species 203,851 347,098 470,830 585,582 712,020 733,367 663,724 615,462 475,980 350,755 297,674 276,783 167,336 475,223 6,375,684 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".

Volume
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 93 Table 87−Net annual growth on nonreserved woodland by forest type and owner group, Utah, 1992. Owner group National Other Nonindustrial Forest type Forest public private Total - - - - - - - - - - Thousand cubic feet - - - - - - - - - Juniper 666 2,377 931 3,975 Maple woodland 522 245 1,173 1,940 Mountain mahogany 847 488 583 1,919 Oak 3,020 583 3,200 6,802 Pinyon-juniper 7,252 20,759 3,327 31,339 All types 12,307 24,453 9,214 45,974 Table 88−Net annual growth on nonreserved woodland by species and diameter class, Utah, 1992. Diameter class All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Douglas-fir (a) 120 50 127 −288 110 90 69 92 47 − − −− 419 Limber pine (a) 17 −− − 29 66 − − − − − −− 113 Ponderosa pine (a) 19 20 25 −−− 23 − − − − −− 86 Rocky Mountain juniperb 44 73 105 108 135 66 47 56 35 33 −−− 3 704 Singleleaf pinyonb 1,004 669 818 647 252 303 183 82 47 37 − − 14 − 4,058 Twoneedle pinyonb 2,502 2,136 2,459 2,059 981 1,100 653 598 −259 −677 176 120 78 82 12,007 Utah juniperb 1,234 1,290 1,667 2,009 2,273 2,357 1,645 1,264 1,133 744 550 496 263 709 17,634 White fir (a) 18 9 9 32 − − − − − − − − − 68 Softwood total 4,784 4,343 5,129 4,983 3,384 3,965 2,685 2,092 1,050 184 726 615 355 793 35,088 Aspen (a) 8 8 24 66 5 − − − − − − −− 111 Bigtooth mapleb 1,284 400 123 −3 82 80 17 44 − − − − −− 2,027 Cottonwood (a) − 3 − 3 − − − − − − − −− 6 Curlleaf mtn. mahoganyb 215 230 266 213 176 103 37 56 19 6 11 − −− 1,333 Gambel oakb 5,515 1,092 335 75 20 − 8 − − − − − −− 7,044 Rocky Mountain mapleb 229 27 46 38 12 5 − − − − − − −− 357 True mtn. mahoganyb 2231 − − − − − − − − −− 9 Hardwood total 7,245 1,759 783 348 359 193 62 99 19 6 11 − − − 10,886 All species 12,030 6,102 5,912 5,331 3,743 4,158 2,747 2,191 1,069 190 737 615 355 793 45,974 aDo not have calculations made below 5" diameter. bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".

Growth
94 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 89−Annual mortality on nonreserved woodland by forest type and owner group, Utah, 1992.Owner group National Other Nonindustrial Forest type Forest public private Total - - - - - - - - - - Thousand cubic feet - - - - - - - - - - Juniper 7 202 − 209 Maple woodland 121 − 217 339 Mountain mahogany 15 − − 15 Oak 272 17 − 290 Pinyon-juniper 235 4,661 525 5,421 All types 650 4,881 743 6,273 Table 90−Annual mortality on nonreserved woodland by species and diameter class, Utah, 1992. Diameter class All Species 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Douglas-fir (

a) −− − 388 −−−−− 388

Limber pine (

a) −− − − − − − − − −

Ponderosa pine (

a) −− − − − − − − − −

Rocky Mountain juniperb (

a) −− − − − − − − − −

Singleleaf pinyonb 5 57 − 109 205 −−−−− 376

Twoneedle pinyonb 8 86 229 500 1,276 319 288 − 605 879 4,190

Utah juniperb 16 − 42 55 − − 208 289 − − 610

White fir (

a) − − − − − − − − − −

Softwood total 30 143 271 664 1,870 319 496 289 605 879 5,565

Aspen (

a) −− − − − − − − − −

Bigtooth mapleb 60 37 68 108 −−−−−− 272

Cottonwood (

a) −− − − − − − − − −

Curlleaf mtn. mahoganyb 8 7 − 44 −−−−−− 59

Gambel oakb 234 81 −−−−−−−− 316

Rocky Mountain mapleb 12 49 −−−−−−−− 61

True mtn. mahoganyb (

a) −− − − − − − − − −

Hardwood total 313 174 68 152 − − − − − − 708

All species 343 318 339 816 1,870 319 496 289 605 879 6,273

aDo not have calculations made below 5" diameter.

bDiameter taken at root collar rather than at breast height and measured to a 3.0" minimum instead of 5.0".

Mortality
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 95

Table 92−Area of reserved timberland and other forest land by

 forest type, Utah, 1993.

 Forest land 

 Reserved Other 

Forest type timberland forest land Total 

- - - - - - - - - - - - - Acres - - - - - - - - - - - -

Aspen 18,356 126,683 145,039

Blue spruce −−−

Cottonwood − 4,491 4,491

Douglas-fir 99,529 5,044 104,573

Engelmann spruce 106,329 − 106,329

Juniper − 1,382,400 1,382,400

Limber pine 12,151 9,096 21,247

Lodgepole pine 111,824 12,484 124,308

Maple woodland − 136,504 136,504

Mountain mahogany − 330,414 330,414

Oak − 739,036 739,036

Pinyon-juniper − 7,766,307 7,766,307

Ponderosa pine 40,819 − 40,819

Spruce-fir 57,889 6,615 64,504

White fir 43,227 − 43,227

All types 490,124 10,519,074 11,009,197

Table 91−Area by county and land class, Utah, 1993.

Forest land

 Reserved Other 

County Timberlanda timberlanda forest landb Nonforest Water Total 

 - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - -

Beaver 93,918 − 582,984 981,272 988 1,659,162

Box Elder 24,273 4,496 281,620 3,144,062 852,397 4,306,848

Cache 184,499 30,830 91,973 433,968 9,552 750,822

Carbon 171,155 − 233,909 533,345 11,793 950,202

Daggett 158,773 − 110,476 178,468 15,067 462,784

Davis 11,048 − 14,680 140,414 239,343 405,485

Duchesne 340,614 167,095 427,071 1,139,860 9,386 2,084,026

Emery 139,943 − 334,921 2,374,284 6,422 2,855,571

Garfield 570,576 29,569 990,805 1,719,407 23,090 3,333,446

Grand 203,573 29,432 545,814 1,578,369 7,163 2,364,352

Iron 136,025 8,307 680,148 1,287,888 988 2,113,357

Juab 53,713 10,026 345,136 1,765,332 5,928 2,180,134

Kane 178,509 9,666 1,056,571 1,304,730 80,028 2,629,504

Millard 46,059 − 391,797 3,927,697 4,693 4,370,246

Morgan 66,174 − 68,276 250,065 6,391 390,906

Piute 79,284 − 154,513 251,128 5,193 490,118

Rich 68,375 − 25,949 558,415 42,531 695,270

Salt Lake 44,634 26,081 35,261 364,846 46,189 517,011

San Juan 207,136 8,617 1,267,292 3,518,603 75,881 5,077,529

Sanpete 234,782 − 229,117 539,949 21,887 1,025,734

Sevier 230,875 − 413,388 580,309 3,211 1,227,782

Summit 442,078 91,109 110,771 554,151 6,466 1,204,576

Tooele 38,678 13,167 389,239 3,944,441 278,616 4,664,141

Uintah 279,616 8,890 621,245 1,959,123 10,621 2,879,494

Utah 188,703 14,276 301,266 773,162 92,872 1,370,278

Wasatch 359,497 − 95,128 305,704 13,585 773,914

Washington 36,128 38,564 527,583 950,995 1,976 1,555,245

Wayne 63,786 − 137,154 1,376,208 1,482 1,578,630

Weber 52,182 − 54,989 234,875 80,028 422,074

Total 4,704,609 490,124 10,519,074 36,671,067 1,953,768 54,338,641

aIncludes forest land with productivity classes 20 and greater.

bIncludes both reserved and nonreserved forest land with productivity less than 20.

Core

Area, County
96 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 94−Area of nonreserved timberland by forest type and owner 

group, Utah, 1993.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

 - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - -

Aspen 796,837 94,560 391,537 1,282,934

Blue spruce 20,820 − − 20,820

Cottonwood 7,092 5,018 12,196 24,307

Douglas-fir 471,894 310,635 241,299 1,023,827

Engelmann spruce 318,340 − 27,898 346,238

Limber pine 49,157 2,321 − 51,478

Lodgepole pine 340,202 − 29,359 369,560

Ponderosa pine 387,700 103,605 62,312 553,617

Spruce-fir 595,563 7,396 68,387 671,347

White fir 281,586 33,630 45,265 360,481

All types 3,269,190 557,165 878,253 4,704,609

Table 93−Area of nonreserved timberlanda by county and ownership class, Utah, 1993.

Ownership class 

 Bureau of 

National Land Miscellaneous County and Indian Other 

County Forest Management Federal State municipal Trust private Total 

 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Beaver 76,310 14,130 − 1,246 − − 2,233 93,918

Box Elder 9,038 1,467 − 2,803 − − 10,965 24,273

Cache 124,299 − − 13,362 − − 46,839 184,499

Carbon 19,524 44,686 − 12,183 − − 94,762 171,155

Daggett 146,860 7,148 − 2,725 − − 2,040 158,773

Davis 10,161 − − 29 496 − 362 11,048

Duchesne 240,944 7,833 − 11,419 499 29,276 50,642 340,614

Emery 94,977 20,690 − 4,582 − − 19,694 139,943

Garfield 542,563 11,538 − 7,746 − − 8,729 570,576

Grand 23,958 80,611 − 65,888 − 21,990 11,127 203,573

Iron 94,824 3,437 − 2,886 − − 34,878 136,025

Juab 26,898 15,095 − 2,533 − 3,885 5,302 53,713

Kane 101,906 18,076 − 9,650 − − 48,876 178,509

Millard 41,127 1,965 − 1,460 − − 1,508 46,059

Morgan 3,934 134 − 4,393 18 − 57,695 66,174

Piute 71,059 1,474 − 4,657 − − 2,093 79,284

Rich 34,857 2,150 − 3,766 − − 27,602 68,375

Salt Lake 27,812 26 − 26 55 − 16,715 44,634

San Juan 163,604 5,728 − 10,513 − 7,156 20,135 207,136

Sanpete 204,738 650 − 3,151 − − 26,242 234,782

Sevier 210,768 372 − 1,007 − 18 18,710 230,875

Summit 295,063 − − 6,985 − − 140,030 442,078

Tooele 7,852 13,380 − 4,178 − − 13,268 38,678

Uintah 191,689 57,341 241 8,449 − 11,424 10,471 279,616

Utah 147,162 4,896 − 5,433 − − 31,212 188,703

Wasatch 270,389 170 − 22,639 − 110 66,189 359,497

Washington 4,694 19,585 − 964 − − 10,885 36,128

Wayne 58,043 5,617 − 126 −−− 63,786

Weber 24,136 − − 2,857 − − 25,189 52,182

Total 3,269,190 338,199 241 217,656 1,068 73,859 804,394 4,704,609

aOn this and all subsequent tables, timberland includes nonreserved forest land with productivity class 20 cubic feet per acre year and greater.
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 97

Table 96−Area of nonreserved timberland by owner group and productivity class, 

Utah, 1993.

Productivity class All 

Owner group 120-164 85-119 50-84 20-49 classes 

- - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - -

National Forest 6,921 160,848 1,036,392 2,065,029 3,269,190

Other public − − 116,294 440,872 557,165

Nonindustrial private − 51,977 245,211 581,066 878,253

Total 6,921 212,825 1,397,896 3,086,966 4,704,609

Table 95−Area of nonreserved timberland by owner group and stand-size class, Utah, 1993.

Stand-size class 

 Sapling/ All 

Owner group Sawtimber Poletimber seedling Nonstocked classes 

- - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - - 

National Forest 2,031,361 756,000 373,197 108,632 3,269,190

Other public 327,008 63,716 56,900 109,542 557,165

Nonindustrial private 409,624 299,307 156,027 13,295 878,253

Total 2,767,992 1,119,023 586,124 231,470 4,704,609

Table 97−Area of nonreserved timberland by forest type and stand-size class, 

Utah, 1993.

 Stand-size class

 Sapling/ All

Forest type Sawtimber Poletimber seedling Nonstocked classes 

 - - - - - - - - - - - - - - - - - - - - - - Acres - - - - - - - - - - - - - - - - - - - - - - - 

Aspen 265,117 758,478 250,345 8,994 1,282,934

Blue spruce 14,220 3,069 3,531 − 20,820

Cottonwood 20,756 − 3,550 − 24,307

Douglas-fir 736,399 83,370 106,187 97,871 1,023,827

Engelmann spruce 329,535 10,383 6,320 − 346,238

Limber pine 39,997 5,577 − 5,905 51,478

Lodgepole pine 163,504 119,862 86,194 − 369,560

Ponderosa pine 381,033 23,659 38,759 110,165 553,617

Spruce-fir 491,681 114,626 65,040 − 671,347

White fir 325,750 − 26,197 8,534 360,481

All types 2,767,992 1,119,023 586,124 231,470 4,704,609
98 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 98−Number of live trees on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 3,138 1,513 1,603 1,271 678 336 257 182 171 56 126 46 50 41 28 9,495 Bristlecone pine − 181 405 90 38 65 73 33 38 45 − 8 − 12 5 994 Douglas-fir 50,061 34,065 24,724 20,529 12,292 10,041 8,160 5,925 3,574 2,386 1,506 871 728 322 542 175,726 Engelmann spruce 46,688 37,347 18,916 14,657 11,996 10,835 7,799 5,273 3,152 2,434 1,633 965 513 217 298 162,724 Limber pine 4,714 3,911 2,399 1,577 475 547 586 347 133 189 99 117 55 21 88 15,257 Lodgepole pine 92,236 66,297 39,908 21,792 12,382 5,684 2,585 1,028 625 250 83 − 12 5 − 242,888 Ponderosa pine 6,942 9,948 6,983 4,402 3,389 2,782 2,253 2,394 1,489 941 838 415 399 277 340 43,790 Rocky Mountain junipera 13,749 9,149 4,962 3,682 2,371 1,312 891 415 442 375 90 84 115 66 37 37,739 Singleleaf pinyona 628 − − 240 − 189 105 − 65 18 − − − −− 1,246 Subalpine fir 236,484 82,512 45,890 27,145 16,241 8,485 4,792 2,662 1,557 876 581 246 195 78 70 427,814 Twoneedle pinyona 8,888 6,443 4,948 2,407 1,978 1,528 1,286 510 259 271 176 64 64 24 24 28,870 Utah junipera 5,931 3,663 3,015 2,482 1,205 774 840 490 548 426 249 156 127 42 48 19,995 White fir 62,542 25,975 15,845 11,023 7,512 4,188 3,279 2,009 1,536 858 584 261 216 92 197 136,117 Softwood total 532,000 281,005 169,598 111,299 70,557 46,766 32,906 21,266 13,587 9,124 5,964 3,234 2,474 1,199 1,675 1,302,655 Aspen 301,790 216,041 165,253 91,169 39,461 16,860 7,403 3,117 996 272 73 44 4 12 − 842,495 Bigtooth maplea 14,769 2,105 935 1,350 508 253 84 − − 11 − − − −− 20,014 Cottonwood − 301 152 − 107 45 176 31 55 141 41 48 49 35 40 1,220 Curlleaf mtn. mahoganya 3,160 1,522 3,492 3,269 2,281 1,111 567 434 186 91 21 − 8 13 15 16,171 Gambel oaka 95,752 21,376 6,118 2,533 444 315 − − − − − − − −− 126,538 Rocky Mountain maplea 16,385 2,170 1,298 173 −−− 19 − − − − − −− 20,046 True mtn. mahoganya −−−− − − − − − − − − − −− − Hardwood total 431,857 243,516 177,248 98,494 42,801 18,584 8,230 3,601 1,236 515 135 92 61 60 55 1,026,484 All species 963,857 524,520 346,846 209,793 113,359 65,349 41,136 24,867 14,824 9,640 6,099 3,326 2,535 1,259 1,730 2,329,139

aDiameter taken at root collar rather than at breast height.

Number of Trees
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 99 Table 99−Number of growing-stock trees on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 1.0-2.9 3.0-4.9 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand trees - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 2,769 1,329 1,603 1,033 678 336 257 182 171 56 126 46 50 41 28 8,705 Bristlecone pine − 181 258 90 38 65 73 33 38 34 − 8 − 6 − 825 Douglas-fir 44,704 31,301 24,058 20,012 12,117 9,779 7,981 5,885 3,407 2,296 1,415 844 671 288 499 165,258 Engelmann spruce 43,229 35,906 18,762 14,501 11,654 10,582 7,628 5,220 3,081 2,400 1,554 951 499 202 280 156,448 Limber pine 4,344 3,758 2,280 1,577 428 514 586 330 120 177 99 117 24 21 79 14,452 Lodgepole pine 87,410 64,956 39,468 21,524 12,146 5,502 2,559 1,011 521 239 74 − 12 5 − 235,427 Ponderosa pine 6,472 9,610 6,983 4,267 3,343 2,782 2,179 2,345 1,400 859 800 406 371 267 304 42,388 Subalpine fir 204,023 77,626 44,188 26,517 15,961 8,121 4,662 2,644 1,498 848 534 200 183 67 65 387,137 White fir 55,906 24,853 15,242 10,554 7,267 4,046 3,234 1,912 1,511 773 514 216 193 81 170 126,472 Softwood total 448,857 249,521 152,842 100,076 63,630 41,727 29,160 19,562 11,746 7,681 5,116 2,788 2,004 977 1,424 1,137,113 Aspen 283,931 195,991 158,260 85,774 37,033 15,555 6,488 2,757 920 211 52 13 4 − − 786,988 Cottonwood − 301 152 − 107 45 176 31 22 129 41 41 42 35 31 1,152 Hardwood total 283,931 196,292 158,412 85,774 37,139 15,600 6,664 2,788 942 340 93 54 46 35 31 788,139 All species 732,788 445,813 311,254 185,851 100,770 57,327 35,824 22,350 12,688 8,021 5,209 2,841 2,050 1,012 1,455 1,925,252
100 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 Table 101−Net volume of sawtimber (Scribner rule) on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 21,655 21,066 26,785 27,549 34,229 12,573 45,652 21,512 26,682 26,309 26,767 290,780 Bristlecone pine 1,536 1,858 3,997 2,726 7,104 5,068 − 1,954 − 2,566 − 26,808 Douglas-fir 399,038 633,206 801,425 872,928 683,203 602,347 460,097 348,143 313,260 158,287 415,005 5,686,941 Engelmann spruce 450,281 742,781 839,552 821,807 636,129 654,998 530,847 387,483 245,415 130,480 257,383 5,697,156 Limber pine 16,350 27,088 48,238 35,872 18,183 31,101 24,511 33,993 10,437 8,358 50,686 304,816 Lodgepole pine 557,448 443,074 293,325 179,274 109,754 57,951 21,351 − 5,723 3,621 − 1,671,520 Ponderosa pine 59,562 119,235 178,181 281,398 241,754 189,135 240,119 143,612 149,534 136,193 219,063 1,957,788 Subalpine fir 627,369 565,925 482,385 391,450 285,943 206,732 166,592 74,648 81,890 37,099 48,481 2,968,513 White fir 203,170 231,817 272,110 217,225 218,944 133,063 115,475 59,641 52,627 28,846 91,093 1,624,012 Softwood total 2,336,409 2,786,050 2,945,998 2,830,230 2,235,243 1,892,968 1,604,645 1,070,987 885,566 531,760 1,108,479 20,228,334 Aspen (a) 987,475 581,196 326,860 140,540 37,293 11,162 3,046 1,285 − − 2,088,857 Cottonwood (a) 2,602 11,170 3,551 2,277 15,847 6,948 9,167 11,446 11,173 15,587 89,768 Hardwood total (a) 990,077 592,365 330,412 142,818 53,140 18,110 12,213 12,731 11,173 15,587 2,178,625 All species 2,336,409 3,776,127 3,538,364 3,160,641 2,378,061 1,946,108 1,622,755 1,083,200 898,298 542,932 1,124,066 22,406,959 aHardwoods are not considered sawtimber until they are 11 inches d.b.h. Table 100−Net volume of growing stock on nonreserved timberland by species and diameter class, Utah, 1993. Diameter class (inches at breast height) All Species 5.0-6.9 7.0-8.9 9.0-10.9 11.0-12.9 13.0-14.9 15.0-16.9 17.0-18.9 19.0-20.9 21.0-22.9 23.0-24.9 25.0-26.9 27.0-28.9 29.0+ classes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Blue spruce 2,534 4,798 6,369 5,439 6,645 6,784 8,337 2,918 9,718 4,352 5,240 5,014 4,847 72,994 Bristlecone pine 407 313 473 637 1,156 722 1,628 1,219 − 432 − 521 − 7,508 Douglas-fir 46,469 104,275 116,099 159,981 193,022 204,901 156,056 131,290 95,032 68,625 60,727 29,978 75,541 1,441,997 Engelmann spruce 37,643 77,403 126,074 188,936 207,475 201,228 153,176 148,040 114,080 80,079 48,840 24,793 46,753 1,454,520 Limber pine 2,800 8,647 5,110 7,788 12,488 8,798 4,298 7,228 5,408 7,287 2,141 1,717 10,077 83,788 Lodgepole pine 111,961 160,817 164,815 114,228 70,022 40,524 24,594 12,882 4,630 − 1,164 719 − 706,355 Ponderosa pine 10,511 15,614 24,749 34,177 42,820 63,367 52,053 39,899 50,222 29,910 31,246 28,081 45,257 467,907 Subalpine fir 92,286 144,537 174,487 144,435 120,269 96,987 69,636 47,853 36,215 15,426 16,220 7,039 8,752 974,143 White fir 23,256 49,275 62,567 60,495 69,621 56,617 58,735 36,394 30,943 15,668 13,929 7,294 21,665 506,459 Softwood total 327,867 565,679 680,743 716,116 723,518 679,929 528,512 427,723 346,248 221,780 179,506 105,156 212,893 5,715,671 Aspen 311,339 454,083 363,919 242,222 138,372 76,224 32,504 8,710 2,632 724 304 − − 1,631,032 Cottonwood 246 − 678 627 2,701 841 547 3,912 1,724 2,260 2,798 2,703 3,633 22,671 Hardwood total 311,585 454,083 364,597 242,848 141,073 77,065 33,052 12,622 4,355 2,984 3,102 2,703 3,633 1,653,703 All species 639,452 1,019,762 1,045,341 958,964 864,591 756,994 561,564 440,345 350,603 224,764 182,609 107,859 216,526 7,369,375

Volume
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 101

Table 104−Net volume of growing stock on nonreserved timberland by forest type and 

stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ 

Forest type Sawtimber Poletimber seedling Nonstocked Total 

 - - - - - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - - - - -

Aspen 506,038 1,075,548 69,042 646 1,651,275

Blue spruce 34,624 1,105 867 − 36,596

Cottonwood 14,427 − 451 − 14,878

Douglas-fir 1,192,570 153,403 47,007 12,518 1,405,498

Engelmann spruce 869,062 27,458 2,781 − 899,301

Limber pine 45,861 5,204 − 652 51,717

Lodgepole pine 429,344 206,087 36,045 − 671,476

Ponderosa pine 382,594 16,317 10,569 15,813 425,292

Spruce-fir 1,390,318 222,947 29,733 − 1,642,998

White fir 558,010 − 10,741 1,593 570,344

All types 5,422,848 1,708,069 207,236 31,222 7,369,375

Table 103−Net volume of sawtimber (Scribner rule) on nonreserved

timberland by species and owner group, Utah, 1993.

 

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - Thousand board feet - - - - - - - - - - -

Blue spruce 273,067 − 17,713 290,780

Bristlecone pine 19,705 7,104 − 26,808

Douglas-fir 3,366,809 991,360 1,328,772 5,686,941

Engelmann spruce 5,381,937 21,441 293,778 5,697,156

Limber pine 229,168 30,271 45,377 304,816

Lodgepole pine 1,372,564 1,956 297,000 1,671,520

Ponderosa pine 1,427,635 231,403 298,750 1,957,788

Subalpine fir 2,515,620 61,354 391,539 2,968,513

White fir 1,312,014 108,749 203,248 1,624,012

Softwood total 15,898,519 1,453,639 2,876,177 20,228,334

Aspen 1,617,045 177,250 294,562 2,088,857

Cottonwood 11,456 17,994 60,317 89,768

Hardwood total 1,628,501 195,244 354,880 2,178,625

All species 17,527,020 1,648,882 3,231,057 22,406,959

Table 102−Net volume of growing stock on nonreserved timberland

by species and owner group, Utah, 1993.

 

Owner group 

 National Other Nonindustrial 

Species Forest public private Total 

 - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - -

Blue spruce 68,607 − 4,387 72,994

Bristlecone pine 5,880 1,628 − 7,508

Douglas-fir 841,493 253,635 346,869 1,441,997

Engelmann spruce 1,377,649 6,082 70,790 1,454,520

Limber pine 63,722 7,291 12,775 83,788

Lodgepole pine 624,748 559 81,047 706,355

Ponderosa pine 350,081 50,861 66,965 467,907

Subalpine fir 839,421 19,319 115,403 974,143

White fir 411,473 34,195 60,791 506,459

Softwood total 4,583,074 373,571 759,026 5,715,671

Aspen 1,140,997 121,896 368,139 1,631,032

Cottonwood 3,255 4,833 14,583 22,671

Hardwood total 1,144,252 126,729 382,722 1,653,703

All species 5,727,326 500,300 1,141,748 7,369,375
102 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 107−Net volume of sawtimber (Scribner rule) on nonreserved 

timberland by forest type and owner group, Utah, 1993.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

 - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - 

Aspen 2,194,566 278,876 419,118 2,892,560

Blue spruce 145,542 − − 145,542

Cottonwood 13,703 17,994 29,168 60,865

Douglas-fir 2,804,035 964,470 1,404,844 5,173,348

Engelmann spruce 3,088,416 − 212,470 3,300,886

Limber pine 174,417 10,851 − 185,268

Lodgepole pine 1,283,742 − 272,564 1,556,306

Ponderosa pine 1,237,474 215,701 272,446 1,725,621

Spruce-fir 5,041,933 11,266 458,454 5,511,654

White fir 1,543,193 149,724 161,993 1,854,909

All types 17,527,020 1,648,882 3,231,057 22,406,959

Table 106−Net volume of growing stock on nonreserved timberland by 

forest type and owner group, Utah, 1993.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

 - - - - - - - - - - - - Thousand cubic feet - - - - - - - - - - - - 

Aspen 1,143,566 131,533 376,177 1,651,275

Blue spruce 36,596 − − 36,596

Cottonwood 2,992 4,833 7,053 14,878

Douglas-fir 763,804 263,454 378,240 1,405,498

Engelmann spruce 839,003 − 60,297 899,301

Limber pine 49,173 2,545 − 51,717

Lodgepole pine 592,095 − 79,381 671,476

Ponderosa pine 311,530 50,151 63,612 425,292

Spruce-fir 1,508,665 4,965 129,367 1,642,998

White fir 479,904 42,820 47,620 570,344

All types 5,727,326 500,300 1,141,748 7,369,375

Table 105−Net volume of sawtimber (Scribner rule) on nonreserved timberland by 

forest type and stand-size class, Utah, 1993.

 Stand-size class 

 Sapling/ All 

Forest type Sawtimber Poletimber seedling Nonstocked classes 

 - - - - - - - - - - - - - - - - Thousand board feet - - - - - - - - - - - - - - -

Aspen 1,516,899 1,229,838 145,823 − 2,892,560

Blue spruce 143,420 2,122 − − 145,542

Cottonwood 58,978 − 1,888 − 60,865

Douglas-fir 4,674,151 276,517 171,002 51,677 5,173,348

Engelmann spruce 3,231,791 58,831 10,264 − 3,300,886

Limber pine 176,592 6,853 − 1,823 185,268

Lodgepole pine 1,322,873 201,477 31,957 − 1,556,306

Ponderosa pine 1,585,137 32,092 40,970 67,422 1,725,621

Spruce-fir 5,012,001 415,938 83,715 − 5,511,654

White fir 1,811,229 − 38,277 5,404 1,854,909

All types 19,533,071 2,223,667 523,895 126,326 22,406,959
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 103

Table 108−Net volume of timber on nonreserved timberland by class

of timber, and softwoods and hardwoods, Utah, 1993.

Class of timber Softwoods Hardwoods Total 

 - - - - - - - Thousand cubic feet - - - - - -

Sawtimber trees

Sawlog portion 4,313,739 389,597 4,703,336

Upper-stem portion 508,386 133,841 642,227

Total 4,822,125 523,438 5,345,563

Poletimber trees 893,546 1,130,265 2,023,811

All growing-stock trees 5,715,671 1,653,703 7,369,374

Rough cull trees 36,875 11,599 48,474

Rotten cull trees 18,328 24,152 42,480

Salvable dead trees 866,198 212,310 1,078,508

All timber 6,637,072 1,901,764 8,538,836
104 USDA Forest Service Resour. Bull. RMRS-RB-1. 1999

Table 109−Net annual growth of growing stock on nonreserved 

timberland by forest type and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

- - - - - - - - - - - -Thousand cubic feet - - - - - - - - - - -

Aspen 19,806 2,836 12,559 35,201

Blue spruce 346 − − 346

Cottonwood 23 −622 −654 −1,252

Douglas-fir 8,676 1,633 6,469 16,778

Engelmann spruce 6,046 − −131 5,915

Limber pine 423 34 − 458

Lodgepole pine 4,947 − 364 5,311

Ponderosa pine 7,942 −1,254 1,761 8,448

Spruce-fir 129 113 −1,362 −1,119

White fir 6,020 424 1,008 7,452

All types 54,358 3,164 20,015 77,537

Table 110−Net annual growth of sawtimber (Scribner rule) on nonreserved 

timberland by forest type and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

- - - - - - - - - - - -Thousand board feet - - - - - - - - - - -

Aspen 62,848 11,436 21,327 95,611

Blue spruce 9 − − 9

Cottonwood 116 −2,206 −1,727 −3,816

Douglas-fir 40,878 2,602 27,973 71,453

Engelmann spruce 31,576 − −1,311 30,265

Limber pine 789 176 − 965

Lodgepole pine 27,346 − 5,150 32,496

Ponderosa pine 35,141 −5,963 5,343 34,522

Spruce-fir 9,049 −57 −8,420 572

White fir 18,033 2,762 4,369 25,164

All types 225,785 8,751 52,705 287,241

Growth
USDA Forest Service Resour. Bull. RMRS-RB-1. 1999 105

Table 111−Annual mortality of growing stock on nonreserved timberland 

by forest type and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

- - - - - - - - - - - -Thousand cubic feet - - - - - - - - - - - -

Aspen 12,878 601 2,638 16,117

Blue spruce 480 − − 480

Cottonwood − 671 750 1,420

Douglas-fir 7,722 4,724 2,632 15,079

Engelmann spruce 8,211 − 1,189 9,399

Limber pine 670 − − 670

Lodgepole pine 12,462 − 776 13,238

Ponderosa pine 1,432 2,091 − 3,523

Spruce-fir 31,602 151 5,141 36,893

White fir 5,825 285 529 6,640

All types 81,282 8,524 13,654 103,460

Table 112−Annual mortalit]23f sawtimber (Scribner rule) on nonreserved 

timberland by forest type and owner group, Utah, 1992.

 Owner group 

 National Other Nonindustrial 

Forest type Forest public private Total 

- - - - - - - - - - - -Thousand board feet - - - - - - - - - - -

Aspen 26,416 − 2,133 28,550

Blue spruce 2,275 − − 2,275

Cottonwood − 2,388 2,126 4,514

Douglas-fir 24,447 20,039 8,435 52,921

Engelmann spruce 29,179 − 4,676 33,855

Limber pine 2,529 − − 2,529

Lodgepole pine 33,302 − 2,086 35,388

Ponderosa pine 5,398 9,839 − 15,237

Spruce-fir 106,064 369 20,062 126,495

White fir 22,040 829 602 23,470

All types 251,650 33,464 40,121 325,235

Mortality
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its

programs and activities on the basis of race, color, national origin, gender, religion,

age, disability, political beliefs, sexual orientation, and marital or familial status.

(Not all prohibited bases apply to all programs.) Persons with disabilities who

require alternative means for communication of program information (Braille, large

print, audiotape, etc.) should contact USDA’s TARGET Center at 202-720-2600

(voice and TDD).

To file a complaint of discrimination, write USDA, Director, Office of Civil Rights,

Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington,

DC 20250-9410 or call 202-720-5964 (voice or TDD). USDA is an equal opportunity provider and employer.

ROCKY MOUNTAIN RESEARCH STATION

RMRS

The Rocky Mountain Research Station develops scientific information and technology to improve management, protection, and use of

the forests and rangelands. Research is designed to meet the needs

of National Forest managers, Federal and State agencies, public and

private organizations, academic institutions, industry, and individuals.

Studies accelerate solutions to problems involving ecosystems,

range, forests, water, recreation, fire, resource inventory, land reclamation, community sustainability, forest engineering technology,

multiple use economics, wildlife and fish habitat, and forest insects

and diseases. Studies are conducted cooperatively, and applications

may be found worldwide.

Research Locations

Flagstaff, Arizona Reno, Nevada

Fort Collins, Colorado* Albuquerque, New Mexico

Boise, Idaho Rapid City, South Dakota

Moscow, Idaho Logan, Utah

Bozeman, Montana Ogden, Utah

Missoula, Montana Provo, Utah

Lincoln, Nebraska Laramie, Wyoming

*Station Headquarters, 240 West Prospect Road, Fort Collins, CO 80526