APPENDIX A: MAPS

Map 1.1.1 Project Location and Access

Map 1.1.2 Land Status and Claims

Map 1.2.1 Existing/Authorized and Proposed Facilities 

Map 1.3.1 Greater Sage-Grouse Habitat

Map 2.1.1 Alternative 1 - No Action

Map 2.1.2 Alternative 2 

Map 2.1.3 Alternative 3

Map 2.1.4 Alternative 4

Map 2.2.1 Cross Section Locations 

Map 2.2.2 Cross Section A-A’

Map 2.2.3 Cross Section B-B’

34S 19E 

--

8 9 10 11 

-

24 25 

39 35 36 ti 

49 50 51 52 53 54 

46 47 48 

. 

-

,H .. 1 

62 63 64 65 66 67 68 69 

_, x· ' I I, -(. 1.~-l - - -· 

Explanation 

• Project Area Land Status (Surface I Subsurface) 

D Claims D BLM / BLM 

F':BLM / State 

II'.l Private / BLM 

12 13 

26 27 

' 

40 41 

55 56 

~ 

,:.7 ' 

,ra ' 

' I f-' l • 

14 15 

i 1•i,g ... ' ("'"; m 

28 29 

11· . e 

l 

42 43 

,,, 

. 

57_ 5R --

- -;;, ' 

I 

,.,. 

Copyright:© 2013 National Geographic Society, i-cubed 

CORNERSTONE INDUSTRIAL MINERALS CORP. 

UCKER HILL PERLITE MINE EXPANSION PROJEC 

PLAN OF OPERATIONS AMENDMENT NO. 7 

Land Status and Claims 

Re · 11/0412016 

JOB 

3412 

Figure 2 

0 0.25 0.5 -----IIIIIC:======iMiles j te: 1110212016 

Base Map :USGS 7.5' quad: Tucker Hitt 

N FUe Name: 3412G_TuckerHILFigure2_Claims.mxd 
--

j 

~ 0 

,p 

II' 

. " 

Explanation 

<.J1 1 

c:J Project Area 1996 Authorized Facilities 

i:,: ~ Tucker Hill Quarry 

--Haul Road 

• Growth Media Stockpile 

2012 Authorized Facility 

i:,: ~ Tucker Hill Quarry Expansion 

·- -

2008 Authorized Facility 

CJ Gravel Pit 

2014 Authorized Facility 

CJ Gravel Pit Expansion 

- -

Proposed facilities 

i:. :_ ~ Proposed Quarry Area 

Proposed Mine Management Area 

- Proposed Berm 

--Proposed Internal Haul Road 

Al~an 

f"l,t 

Land Status 

-., JJ-S 

Bureau of Land Mangement 

Private 

0.5 

-

.,,. r 

MC 7"}) ·•.•-;;. 

........ t, 

$ ~ 

'Z ~ 

~ > 

3~1 

?1 t u 

Tt-ie -Nauo~!)\ 8 ~ 4 e,,ag, 

' 

' ..... ...... 34S 20E 

,,. 

, 

Miln 

30 

t 

Copyright:C 2013 National Geographic Society, i•cubed 

CORNERSTONE INDUSTRIAL MINERALS CORP. 

CKER HILL PERLITE MINE EXPANSION PROJEC 

PLAN OF OPERATIONS AMENDMENT NO. 7 

Existing/Authorized 

f igure- 3 

and Proposed Facilities 

1 •:;;,.,;:. l!oJe ,..oc,:USGS f .5' - 1' Tud• < Hit 

N .. »•~.,- ... ,.,.,.~~--• 

Map 1.2.1
!(

!(

!(

!(

!(

Copyright:© 2013 National Geographic Society, i-cubed

BUREAU OF LAND MANAGEMENT

Greater Sage-Grouse Habitat

DRAFT

TUCKER HILL PERLITE MINE EXPANSION PROJECT

PLAN OF OPERATIONS AMENDMENT NO. 7

Explanation

Project Area 1996 Authorized Facilities

Tucker Hill Quarry

Haul Road

!( Growth Media Stockpile

2008 Authorized Facility

Authorized Disposal Area (County Gravel Pit)

2012 Authorized Facility

Tucker Hill Quarry Expansion

Proposed Facilities

Proposed Disturbance Area

Proposed Berm

Proposed Internal Haul Road

OR ARMPA GRSG Habitat (Sept 2015) 

Priority Habitat Management Area (PHMA)

Priority Habitat Management Area (PHMA) in SFA

General Habitat Managment Area (GHMA)

$ 0 0.5 1

Miles

Map 1.3.1

03/23/2018
!(

!(

!(

!(

!(

Copyright:© 2013 National Geographic Society, i-cubed

BUREAU OF LAND MANAGEMENT

Alternative 1- No Action

DRAFT

TUCKER HILL PERLITE MINE EXPANSION PROJECT

PLAN OF OPERATIONS AMENDMENT NO. 7

Explanation

Project Area 1996 Authorized Facilities

Tucker Hill Quarry

Haul Road

!( Growth Media Stockpile

2008 Authorized Facility

Authorized Disposal Area (County Gravel Pit)

2012 Authorized Facility

Tucker Hill Quarry Expansion

Land Status (Surface, Subsurface)

BLM, BLM

BLM, Private

BLM, State

Private, BLM

Private, Private $ 0 0.5 1

Miles

Map 2.1.1

03/23/2018
!(

!(

!(

!(

!(

Copyright:© 2013 National Geographic Society, i-cubed

BUREAU OF LAND MANAGEMENT

Alternative 2

DRAFT

TUCKER HILL PERLITE MINE EXPANSION PROJECT

PLAN OF OPERATIONS AMENDMENT NO. 7

Explanation

Project Area 1996 Authorized Facilities

Tucker Hill Quarry

Haul Road

!( Growth Media Stockpile

2008 Authorized Facility

Authorized Disposal Area (County Gravel Pit)

2012 Authorized Facility

Tucker Hill Quarry Expansion

Alternative 2

Alternative 2 berm

Mine management area

Proposed Internal Haul Road

Land Status (Surface, Subsurface)

BLM, BLM

BLM, Private

BLM, State

Private, BLM

Private, Private $ 0 0.5 1

Miles

Map 2.1.2

03/23/2018
!(

!(

!(

!(

!( 34S 19E

34S 20E

Copyright:© 2013 National Geographic Society, i-cubed

TUCKER HILL PERLITE MINE EXPANSION PROJECT

PLAN OF OPERATIONS AMENDMENT NO. 7

Explanation

Project Area 1996 Authorized Facilities

Tucker Hill Quarry

Haul Road

!( Growth Media Stockpile

2012 Authorized Facility

Tucker Hill Quarry Expansion

2008 Authorized Facility

Gravel Pit

2014 Authorized Facility

Gravel Pit Expansion

PAlternative 3

Proposed Quarry Area

Proposed Mine Management Area

Proposed Berm

Proposed Internal Haul Road

Land Status

Bureau of Land Mangement

Private

$ 0 0.5 1

Miles

CORNERSTONE INDUSTRIAL MINERALS CORP.

3412

JDB

3412G_TuckerHill_Figure3_Proposed.mxd

11/08/2016

11/02/2016

USGS 7.5' quad: Tucker Hill
!(

!(

!(

!(

!(

Copyright:© 2013 National Geographic Society, i-cubed

BUREAU OF LAND MANAGEMENT

Alternative 4

DRAFT

TUCKER HILL PERLITE MINE EXPANSION PROJECT

PLAN OF OPERATIONS AMENDMENT NO. 7

Explanation

Project Area 1996 Authorized Facilities

Tucker Hill Quarry

Haul Road

!( Growth Media Stockpile

2008 Authorized Facility

Authorized Disposal Area (County Gravel Pit)

2012 Authorized Facility

Tucker Hill Quarry Expansion

Proposed Facilities

Proposed Disturbance Area

Proposed Berm

Proposed Internal Haul Road

Land Status (Surface, Subsurface)

BLM, BLM

BLM, Private

BLM, State

Private, BLM

Private, Private $ 0 0.5 1

Miles

Map 2.1.4

03/23/2018
4 -

Explanation 

D Project Area 

c_1 Proposed Quarry Area 

iz:a Mine Management Area 

- Cross Section Line 

0 

Tucker 

Hill 

0.5 

/ 

/ 

I 

I 

I 

I 

I, 

I 

' 

/ 

' 

-

r ---

' ' ' ' ' 

B 

" " 

/ 

I 

I 

\ / I ,_ .r"' I 

/ 

I 

' 

\ 

\ 

\ 

_ .... I 

\ 

\ 

\ 

l 

I 

I 

I 

I 

I 

I .r I 

.,.r I 

r ' / ' 

( ' 

r-~~ -,----:i:;---"-- ,-s-~--,.,r-->·""'(...,r L~ ...,.51 ; I Js-.,,,1,-~ I I \ \. I 

H-7 ' • <1 J- ''--" ,., ~ .l ......... ~ .. r"-t ·-.____ _ _ __i,-.,_~-- ) ,' 

l

'lt.r--- , I ' / i-✓'-"".-{ f_F,.,;,..., f - ----1 L ' -~ l •-r'\. r' L'-"L J-- : I h 'l ,---r---=i I I ,, \ "'-1 , ! : 1 

I • •• \ L I I 

('J,...T.rl -7 • --1 \ \ 

\ C'. I l l I ,_i_J_ __ .!_ ___ .J. ___ _ .J.--__ L--_, 

A--'t;,----------~----'~,~- \ .,-- -..., I A' 

\ / 

~-"' I 

1 

Miles 

I 

-- I - ... ,1 

I/ 

Copyright:© 2013 National Geographic Society, i-cubed 

CORNERSTONE INDUSTRIAL MINERALS CORP. 

UCKER HILL PERLITE MINE EXPANSION PROJEC 

PLAN OF OPERATIONS AMENDMENT NO. 7 

Cross Section Locations 

Revised: 11/0412016 

JOB 

3412 j re : 11102120, s 

N File Nome:3412G_Tucke1HiLFigure4_CrouSectionlocunxd 

Figure 4 
A 

Existing 

Topography 

Proposed I 

Quarry 

A' 

4700' 1--------------------------------- -------------------ai 

100 Feet 

500 Feet 

CORNERSTONE INDUSTRIAL MINERALS CORP. 

UCKER HILL PERLITE MINE EXPANSION PROJEC 

PLAN OF OPERATIONS AMENDMENT NO. 7 

Cross Section A-A' 

Figure 5 e: 1110212016 rawn ..OB 

Revised: 11/04/2016 Pro· t No.: 3412 

Base Map: 

File Nome: 3412G_TuckerHilLF19u1e5_C1ossSecilonAA.mxd 
B 

4900' 

4800' 

4700' 

4600' 

Proposed 

Existing 

Topography B' 

4500' h~---+--------------------Q_u_a_rry'--__________________________ ,,_--1..._-----l 

4400' ..._L-------------- ---------------------------------~ 1----1 

4300' 

100FeetL 

500 Feet 

CORNERSTONE INDUSTRIAL MINERALS CORP. 

UCKER HILL PERLITE MINE EXPANSION PROJEC 

PLAN OF OPERATIONS AMENDMENT NO. 7 

Cross Section B-B' 

Figure 6 e: 11,02.12016 rawn B 

Revised: 11/0412016 Pro f No.: 3412 

Bose Map: 

File Nome: 3412G_TuckerHILFigure6_ C101sSeebonB0 .mxd 
APPENDIXB: PROJECT DESIGN ELEMENTS

Project Design Elements 

Cornerstone would implement the following Project Design Elements (PDEs) to mitigate potential 

effects and prevent unnecessary or undue degradation during construction, operation, and 

reclamation of the Project. The measures are derived from the general requirements established in 

BLM Surface Management Regulations at 43 CFR 3809, as well as other water, air quality, and 

environmental protection regulations, and the governing land use plans (BLM 2003b, 2015a). 

Air Quality 

APDE 1 – Sufficient water for dust abatement would be provided on the haul road to reduce any 

dust plumes and minimize impacts on air quality and visual quality (BMP R-070; Roads RDF 7).

Cultural Resources 

CPDE 1 – A Historical Properties Treatment Plan (HPTP) would be developed for located cultural 

properties on the Project Area based upon the results of the site inventory, site testing, and analysis 

for all sites located on the Project Area, and determinations of eligibility for placement upon the 

National Register of Historic Places (NRHP). All work specified in the HPTP would be completed 

before any land disturbing activities are allowed to take place on the Project Area. 

CPDE 2 – If Native American Tribes or individuals express a desire for a tribal monitor to help 

prevent unnecessary site disturbance, then the BLM would work with Cornerstone to review the 

need for, and possibly obtain an archaeological monitor.

CPDE 3 – Should any additional archaeological discoveries be encountered during ground 

disturbing activities, all such activities would halt within a 50-meter radius of the discovery, and 

the BLM would be contacted to determine the nature of the find, evaluate its significance, and if 

necessary, suggest preservation or mitigation measures.

Noxious Weeds 

Noxious weed PDEs were adapted from BLM (2015b).

NWPDE 1— All contractors and land-use operators moving surface-disturbing equipment in

or out of weed-infested areas should clean their equipment before and after use on public land.

NWPDE 2— Control weeds annually in areas frequently disturbed such as gravel pits and 

roadsides. 

NWPDE 3— All seed, hay, straw, mulch, or other vegetation material transported and used on 

public land weed-free zones for site stability, rehabilitation, or project facilitation should be 

certified by a qualified Federal, state or county officer as free of noxious weeds and noxious

weed seed. 

NWPDE 4— It is recommended that all vehicles, including off-road and all-terrain, traveling in

or out of weed-infested areas should clean their equipment before and after use on public land.
Invasive Plant Prevention 

Invasive Plant Prevention PDEs were adapted from BLM (2015b). 

 

IPDE 1—Before ground-disturbing activities begin in new area, inventory weed infestations

and prioritize areas for treatment in project operating areas and along accessroutes.

IPDE 2—Remove sources of weed seed and propagules to prevent the spread of existing

weeds and new weed infestations.

IPDE 3—Pre-treat high-risk sites for weed establishment and spread before implementing

projects.

IPDE 4—Minimize soil disturbance to the extent practical, consistent with project objectives.

IPDE 5—Avoid creating soil conditions that promote weed germination and establishment.

IPDE 6—To prevent weed germination and establishment, retain native vegetation in and

around project activity areas and keep soil disturbance to a minimum, consistent with project

objectives.

IPDE 7—Locate and use weed-free project staging areas. Avoid or minimize all types of 

travel through weed- infested areas, or restrict travel to periods when the spread of seeds or 

propagules is least likely.

IPDE 8—Prevent the introduction and spread of weeds caused by moving weed-infested

sand, gravel, borrow, and fill material.

IPDE 9—Inspect material sources on site, and ensure that they are weed-free before use and 

transport. Treat weed-infested sources to eradicate weed seed and plant parts, and strip and

stockpile contaminated material before any use of pit material.

IPDE 10—Survey the area where material from treated weed-infested sources is used for at

least 3 years after project completion to ensure that any weeds transported to the site are 

promptly detected and controlled. 

IPDE 11—Prevent weed establishment by not driving through weed-infested areas.

IPDE 12—Inspect and document weed establishment at access roads, cleaning sites, and 

all disturbed areas; control infestations to prevent spread within the project area.

IPDE 13—Avoid acquiring water for dust abatement where access to the water is through weedinfested sites.

IPDE 14—Identify sites where equipment can be cleaned. Clean equipment before entering

public lands.

IPDE 15—Clean all equipment before leaving the project site if operating in areas infested with

weeds.

IPDE 16—Inspect and treat weeds that establish at equipment cleaning sites.

IPDE 17—Ensure that rental equipment is free of weed seed.
IPDE 18—Inspect, remove, and properly dispose of weed seed and plant parts found on 

workers’ clothing and equipment. Proper disposal entails bagging the seeds and plant parts

and incinerating them.

IPDE 19—Include weed prevention measures, including project inspection and 

documentation, in operation and reclamation plans.

IPDE 20—To prevent conditions favoring weed establishment, re-establish vegetation on 

bare ground caused by project disturbance as soon as possible using either natural recovery or 

artificial techniques.

IPDE 21—Maintain stockpiled, un-infested material in a weed-free condition. 

IPDE 22—Revegetate disturbed soil (except travel ways on surfaced projects) in a manner 

that optimizes plant establishment for each specific project site. For each project, define what 

constitutes disturbed soil and objectives for plant cover revegetation. Revegetation may 

include topsoil replacement, planting, seeding, fertilization, liming, and weed-free mulching,

as necessary.

IPDE 23—Where practical, stockpile weed-seed-free topsoil and replace it on 

disturbed areas (e.g., road embankments or landings). 

IPDE 24—Inspect seed and straw mulch to be used for site rehabilitation (for wattles, straw 

bales, dams, etc.) and certify that they are free of weed seed and propagules. 

IPDE 25—Use native material where appropriate and feasible. Use certified weed-free or 

weed-seed-free hay or straw where certified materials are required and/or are reasonably

available.

IPDE 26—Provide briefings that identify operational practices to reduce weeds. 

IPDE 27—Evaluate options, including closure, to regulate the flow of traffic on sites where

desired vegetation needs to be established. 

Spill Prevention

SPDE 1– Cornerstone would follow the Spill Contingency Plan.

Visual Resources

VPDE 1 – When possible, the front wall of quarry would serve as the perimeter area visibility 

berm. This berm would obscure the highwall from view. No white material would be placed 

outside of the perimeter area visibility berm. 

VPDE 2 – If visual impacts associated with the highwall of the quarry results in a sharp color 

contrast with the surrounding vegetation, consideration would be given to using a desert varnish 

or staining material to further reduce the visual impacts (BMP SD-1).

VPDE 3 – The use of darker topsoil and dark material overburden will be used to reduce the 

contrasting color of berms.
VPDE 4 – The use of a BLM-approved seed mix on overburden and berm features will be used to 

reduce contrast and stabilize soils.

VPDE 5 – Earthen berm heights of approximately 7-feet exterior and approximately 13-feet 

interior.

VPDE 6 – Utilize re-contouring of disturbed lands to conform to pre-construction conditions 

where practical.

Wildlife

WPDE 1 – To avoid impacts to golden eagles, blasting would not occur during the breeding season 

January 1 through August 31 within a one-mile buffer of an active nest. However, if the active 

golden eagle nest is out of line-of-sight of the blasting activities, the buffer distance could be 

reduced to a 0.75-mile buffer between January 1 and August 31. 

WPDE 2– Moderate impact activities (90-100 dB), such as hydraulic drilling, would not occur 

within a 0.75-mile buffer of an active golden eagle nest between January 1 and August 31. 

However, if the active golden eagle nest is out of line-of-sight of the moderate impact activities, 

the buffer distance and timing restriction could be reduced. 

WPDE 3– Low impact activities (<90dB), such as crushing or haul truck driving, would not occur 

within a 0.5-mile buffer of an active golden eagle nest, between January 1 and August 31. 

However, if the active golden eagle nest is out of line-of-sight of the light impact activities, the 

buffer distance and timing restriction could be reduced. 

WPDE 4– To minimize impacts to raptors during the breeding season January 1 through August 

31, no activities would occur within 0.5 miles of an active nest until chicks have fledged. 

WPDE 5– Monitoring would occur at the appropriate times of year (typically February and May) 

would occur during periods of blasting activities to ensure the 0.75-mile buffer distance is 

appropriate. As blasting activities progress closer to any identified active golden eagle nests or 

become deeper in the quarry, adaptive management techniques coordinated with the BLM and 

USFWS would be implemented to determine the appropriate timing restriction and/or buffer 

distance.

WPDE 6– For Moderate Activities, monitoring would occur at the appropriate times of year

(typically February and May) would occur to ensure the 0.75-mile buffer distance is appropriate. 

As moderate impact activities progress closer to any identified active golden eagle nests or become 

deeper in the quarry, adaptive management techniques coordinated with the BLM and USFWS 

would be implemented to determine the appropriate timing restriction and/or buffer distance.

WPDE 7– For Light Activities, monitoring would occur at the appropriate times of year (typically 

February and May) would occur to ensure the 0.5-mile buffer distance is appropriate. As light 

impact activities progress closer to any identified active golden eagle nests or become deeper in 

the quarry, adaptive management techniques coordinated with the BLM and USFWS would be 

implemented to determine the appropriate timing restriction and/or buffer distance.