**Via Email Distribution**

> September 13, 2004

GENERAL MANUAL

190-ECS

AMENDMENT CO4 -- (Part 481 Subpart B)

SUBJECT: ECS-National Inventories and Assessments, Subpart B --
Nationwide Rivers Inventory

[Purpose]{.underline}: To revise the Colorado Supplement to the General
Manual about Nationwide Rivers Inventory in Colorado.

[Effective Date]{.underline}: When Received.

[Explanation]{.underline}: This amendment updates the Colorado
Supplement to the General Manual for 190-GM, Part 481 National
Inventories and Assessments, Subpart B Nationwide Rivers Inventory and
exhibits.

[Filing Instructions]{.underline}:

[Remove pages]{.underline}:

Contents CO 190-GM, Issue CO 07, May, 1994, COi

CO481-B-1 through CO481-B-5

[Insert pages]{.underline}:

Contents CO 190-GM, Issue CO 08, September 2004, COi

CO481-B-1 through CO481-B-6

If you have any questions about this amendment, please contact the State
Biologist at 720-544-2813 or email at <terri.skadeland@co.usda.gov> .

/s/

ALLEN GREEN

State Conservationist

DIST: O

Attachments

CONTENTS

CO190 -- ECOLOGICAL SCIENCES

PART CO480 -- RECREATION

PART CO481 -- NATIONWIDE RIVERS INVENTORY

PART CO483-- PROTECTION OF WETLANDS

PART CO485 -- THREATENED AND ENDANGERED SPECIES

CONTENTS

PART 481 -- NATIONAL INVENTORIES AND ASSESSMENTS

[Sec.]{.underline} [Page]{.underline}

[Subpart A -- (Reserved)]{.underline}

[Subpart B -- Nationwide Rivers Inventory]{.underline}

CO481-B.0 Purpose CO481-B-1

CO481-B.1 Authority CO481-B-1

CO481-B.2 Policy CO481-B-1

CO481-B.3 Permits CO481-B-1

CO481-B.4 Exhibit I CO481-B-2

Designed Wild and Scenic Rivers - Colorado

Exhibit II CO482-B-3

National Rivers Inventory Segments - Colorado

[Subpart C -- National registry of Natural Landmarks]{.underline}

CO481-C.0 Purpose CO481-C-1

CO481-C.1 Authority CO481-C-1

CO481-C.2 Policy CO481-C-1

CO481-C.3 List of Natural Landmarks -- Colorado CO481-C-1

# **PART 481 -- NATIONAL INVENTORIES AND ASSESSMENTS**

# **SUBPART B -- NATIONWIDE RIVERS INVENTORY**

# 

# **CO481.6**

**§CO481.0 Purpose**

The purpose of this Part is to state Colorado policy and procedure for
interagency consultation to avoid or mitigate adverse effects of
proposed activities on rivers designated in the Nationwide Rivers
Inventory, and those designated for study for inclusion in the National
Wild and Scenic Rivers system.

## CO481.1 Authority

(a) These inventories were developed by the National Park Service (NPS)
    to protect, as provided by the National Environmental Policy Act
    (NEPA), Executive Order 11514, and the Council on Environmental
    Quality regulations, those rivers or segments of rivers that posses
    values of national significance.

(b) This part includes two exhibits indicating rivers or segments of
    rivers in Colorado that are of national significance. Exhibit 1
    lists Colorado\'s designated Wild and Scenic Rivers. Exhibit 2 lists
    Colorado\'s Nationwide Rivers Inventory rivers.

## CO481.2 Policy

The Environmental Evaluation (EE/CPA-52) procedure will be used in all
planning and will indicate potential adverse effects of proposed NRCS
activities involving listed streams. Prior to any action involving NRCS
participation that may affect values on these listed streams, it shall
be the policy of NRCS in Colorado to contact the State Resource
Conservationist who will consult with the appropriate agency (ies) to
determine ways of avoiding or mitigating potential adverse effects.
Activities such as clearing and snagging, riprap and bank stabilization,
diversion structures, roads, bridge, fords, recreation area, timber
harvest, channelization, landfill, and impoundment are some examples of
activities which could require consultation if done on an inventoried
reach of river.

## CO481.3 Permits

The consultation process [does not]{.underline} preclude necessity for
obtaining permits, such as Section 404 permits, for some NRCS activities
on streams.

# 

# 

CO481-1

**Exhibit 1**

**Designated Wild and Scenic Rivers Colorado**

**Cache la Poudre River - Larimer County**

**Designated Reach:** October 30, 1986. From Poudre Lake downstream to
where the river intersects the easterly north-south line of the west 1/2
SW 1/4 of section 1, T8N, R71W of the sixth principal meridian. The
South Fork from its source to section 1, T7N, R73W of the sixth
principal meridian; from its intersection with the easterly section line
of section 30, T8N, R72W of the sixth principal meridian to the
confluence with the main stem.

**Classification/Mileage:** Wild \-- 30.0 miles; Recreational \-- 46.0
miles; Total \--

76.0 miles.

CO481-2

# 

# **Exhibit 2**

# **CO481.4 National Rivers Inventory Segments - Colorado**

+------------+--------------+----------------------------+------------+
| **River**  | **C          | **Segment Reach            | **Length   |
|            | ounty(ies)** | Description**              | (Miles)**  |
+------------+--------------+----------------------------+------------+
| Animas     | San Juan,    | Animas City to Mineral     | 45         |
|            |              | Creek                      |            |
|            | La Plata     |                            |            |
+------------+--------------+----------------------------+------------+
| Arikaree   | Yuma         | NE/KS State line to Alder  | 48         |
|            |              | Creek                      |            |
+------------+--------------+----------------------------+------------+
| Arkansas   | Lake,        | USFS boundary north of     | 119        |
|            | Chaffee,     | Leadville to Canon City    |            |
|            | Fremont      |                            |            |
+------------+--------------+----------------------------+------------+
| Arkansas   | Otero        | Entire segment within      | 2          |
|            |              | Bent's Old Fort Nat.       |            |
|            |              | Historic Site              |            |
+------------+--------------+----------------------------+------------+
| Badger     | Fremont,     | Arkansas river to source   | 25         |
| Creek      | Park         |                            |            |
+------------+--------------+----------------------------+------------+
| Beaver     | Fremont      | Skagway Reservoir to east  | 20         |
| Creek      |              | side of State Refuge       |            |
+------------+--------------+----------------------------+------------+
| Big        | Larimer      | Entire segment within      | 14         |
| Thompson   |              | Rocky Mountain National    |            |
|            |              | Park                       |            |
+------------+--------------+----------------------------+------------+
| Big        | Larimer      | Entire segment within      | 9          |
| Thompson,  |              | Rocky Mountain National    |            |
| North Fork |              | Park                       |            |
+------------+--------------+----------------------------+------------+
| Blue Creek | Gunnison     | Curecanti Nat. Rec. Area   | 2          |
|            |              | boundary downstream to     |            |
|            |              | Morrow Point Reservoir     |            |
+------------+--------------+----------------------------+------------+
| Cache la   | Larimer      | Dale Creek to source       | 31         |
| Poudre,    |              |                            |            |
| North Fork |              |                            |            |
+------------+--------------+----------------------------+------------+
| Chacuaco   | Las Animas   | Purgatoire River to        | 37         |
| Canyon     |              | Highway 160                |            |
+------------+--------------+----------------------------+------------+
| Coal Creek | Gunnison     | Curecanti Nat. Rec. Area   | 0          |
|            |              | boundary downstream to     |            |
|            |              | Blue Mesa Reservoir        |            |
+------------+--------------+----------------------------+------------+
| Colorado   | Grand, Eagle | State Bridge to Blue River | 23         |
+------------+--------------+----------------------------+------------+
| Colorado   | Grand        | Entire segment within      | 21         |
|            |              | Rocky Mtn. Nat. Park       |            |
+------------+--------------+----------------------------+------------+

CO481-3

**Exhibit 2**

  ------------ --------------- ------------------------------ ------------
  Conejos      Conejos         North, Middle, and El Rito     57
                               Azul Forks from sources to     
                               confluence with Conejos River, 
                               thence Conejos River to        
                               confluence with South Fork     

  Crystal      Gunnison,       National Forest boundary to    45
               Pitkin          sources of North and South     
                               Forks, including both North &  
                               South Forks                    

  Crystal      Pitkin          Sweet Jessep Headgate upstream 40
                               to source, including both      
                               North & South Forks            

  Curecanti    Gunnison        Curecanti Nat. Rec. Area       1
  Creek                        boundary downstream to Morrow  
                               Point Reservoir                

  Dolores      Montezuma,      1.3 miles below McPhee Damsite 105
               Dolores, San    downstream to point 1 mile     
               Miguel,         above Colorado Highway 90      
               Montrose        bridge near Bedrock            

  East         Gunnison        Gunnison River to source       20

  Elk          Routt           Mainstem upstream from         29
                               confluence with South Fork,    
                               North Fork and South Fork to   
                               headwaters, and Middle Fork to 
                               confluence of Gilpin and Gold  
                               Creeks                         

  Encampment   Jackson         Mainstem from WY State line to 20
                               headwaters. West Fork from     
                               confluence with mainstem to    
                               headwaters at West Fork Lake   

  Fall         Larimer         Headwaters of Fall River to    10
                               Fan Lake (within RMNP)         

  Gunnison     Montrose        Entire segment within Black    12
                               Canyon of the Gunnison         
                               National Monument              

  Gunnison     Gunnison        Curecanti Nat. Rec. Area       1
  River, Lake                  boundary downstream to Blue    
  Fork                         Mesa Reservoir                 

  Gunnison     Gunnison        Sloan Lake to Wager Gulch      13
  River, Lake                                                 
  Fork                                                        
  ------------ --------------- ------------------------------ ------------

CO481-4

**Exhibit 2**

  ------------ --------------- ----------------------------- -------------
  Huerfano     Pueblo          Huerfano Cucharas Ditch       9
                               diversion to Cucharas River   

  Los Pinos    Hinsdale        Confluence of North Fork and  54
                               Rincon La Vaca downstream to  
                               northern boundary of Granite  
                               Peak Ranch. Tributaries from  
                               headwaters to confluence with 
                               Los Pinos River               

  North St.    Boulder         Ralph Price Reservoir to      19
  Vrain Creek                  source                        

  North St.    Boulder         Entire segment within Rocky   8
  Vrain Creek                  Mtn. National Park            

  Piedra       Archuleta,      Main stem from confluence     32
               Hinsdale,       with Indian Creek to boundary 
               Mineral         between Sec. 8 and 9, T36N,   
                               R3W. Middle Fork from         
                               boundary between Sec. 10 &    
                               15, T37N, R3W to headwaters   

  Purgatoire   Otero, Las      Trinchera Creek downstream to 117
               Animas, Bent    Arkansas River                

  Rio Grande   Conejos,        Alamosa Wildlife Refuge to NM 41
               Alamosa         State line                    

  San Juan     Rio Grande,     Fourmile Creek to sources of  50
               Mineral,        East and West Forks           
               Archuleta                                     

  South Platte Douglas,        Cheesman Reservoir to         28
               Teller, Park,   Elevenmile Canyon Res.        
               Jefferson                                     

  South St.    Boulder         Rocky Mtn. Nat. Park boundary 11
  Vrain, North                 to high water mark of Ralph   
  Fork                         Price Reservoir               

  Taylor       Gunnison        Illinois Creek to source      21

  West Elk     Gunnison        Curecanti Nat. Rec. Area      0
  Creek                        boundary downstream to Blue   
                               Mesa Reservoir                

  White River, Rio Blanco,     White River to source         25
  North Fork   Garfield                                      
  ------------ --------------- ----------------------------- -------------

CO481-5

**Exhibit 2**

  ------------ --------------- ----------------------------- -------------
  White River, Rio Blanco,     White River to source         35
  South Fork   Garfield                                      

  White River, Rio Blanco,     White River to source         38
  South Fork   Garfield                                      

  Yampa        Moffat          the segment within Dinosaur   0
                               Nat. Monument                 

  Yampa        Moffat          Little Snake River to         83
                               Williams Fork                 
  ------------ --------------- ----------------------------- -------------

CO481-6