Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Hard Rock Mining

Program Overview

The Hard Rock Mining Bureau oversees implementation and enforcement of the Montana Metal Mine Reclamation Act. The Act recognizes mining and the production of minerals as activities that are beneficial to the economy of Montana, when conducted in a way that protects the environment from degradation and ensures for proper reclamation of mined land. The Bureau reviews permit and license applications for mining operations ranging from decorative landscaping rock to copper ore to sapphires. 


Types of Permits & Licenses

The Hard Rock Mining Bureau has separate programs for hard rock exploration and hard rock mining. Hard rock exploration requires a license to perform drilling and trenching and other activities to determine if an economical mineral resource is present. Hard rock mining can occur under a Small Miner Exclusion Statement (SMES) or under an Operating Permit. Small Miner Exclusion mining has the limitation of not more than five acres of disturbance at any one time. Mining that cannot be limited to five acres of disturbance, can only be done under an Operating Permit. In some circumstances, multiple sites may be permitted under a single Operating Permit.

If you believe you need a permit, applicable forms and instructions can be found by clicking the "Permitting and Operator Assistance" button. Contact us if you have questions or run into problems with any of the information. We're here to help!

Operating Permits

Operating permits are required for hard rock mines that will disturb more than five acres at any one time. The Operating Permit Section of the Hard Rock Mining Bureau is responsible for the review of permit applications for operating permits and for the corresponding inspections of those mines. The Operating Permit Section is also responsible for implementing other portions of the program, such as the review/development of environmental reviews, the review of annual reports, the review of permit revision requests, and the review of amendment applications.

Please be advised that these documents and notices are being posted to the website as a courtesy. The format or content of documents and notices posted may be modified as necessary for website software requirements and protocols. Reliance should not be placed on courtesy notifications in lieu of the statutory notification requirements set forth in the Montana Metal Mine Reclamation Act. Please note that the pending amendments and pending operating permit applications listed below are those that are currently under review by the Hard Rock Mining Bureau.

Exploration Licenses

An Exploration License is required for all mineral exploration activities that may involve surface or subsurface disturbance. The Exploration License is not a mining permit, and cannot be used for mining. Likewise, the Operating Permit (OP) and Small Miner Exclusion Statement (SMES) are intended for “mining” and cannot be used for “exploration.”

Small Miner Exclusions

Small Miner Exclusion Statements are an exclusion from the requirements of an Operating Permit and are generally applicable to operations that disturb less than five acres of land. Bonding and site reclamation is not required, except for placer mining operations. An environmental review of potential impacts is also not required.

Contacts

Hard Rock Bureau Office Contacts

Bureau Chief
Dan Walsh (406) 444-6791

Section Supervisor
Herb Rolfes (406) 444-3841

Program Support Specialist
Jean Correia (406) 444-0988


Small Miner Exploration Section

Environmental Scientist
Jake Mohrmann (406) 444-4330

Environmental Scientist
Whitney Bausch (406) 444-4960


Operating Permit Section

Reclamation Specialist
Betsy Hovda (406) 444-4946

Engineer, PE
Charles Freshman (406) 444-2005

Geochemist
Garrett Smith (406) 444-1967

Vegetation and Soil Scientist
Millie Olsen (406) 444-2461

Hydrologist
Theodore Lewis (406) 444-2017

Hydrologist
Wayne Jepson (406) 444-0529

Pending Amendments

Stillwater Mining Company (Stillwater) East Boulder Mine proposes a major amendment to Operating Permit #000149 for the addition of the Lewis Gulch Tailings Storage Facility (LGTSF) and the Dry Fork Waste Rock Storage Area (DFWRSA). Construction of these facilities will provide Stillwater with the tailings and waste rock storage capacity needed to continue to mine the JM Reef in the near term. A summary of the facilities is provided below, and detailed information is in the attached Amendment 004 Plan of Operations (POO). The LGTSF is proposed to be constructed along the west end of the existing East Boulder tailings storage facility in the general area of the current borrow pit. Infrastructure relocation is proposed for 2028 with lining to the basin mid-point in 2030 and lining to the top in 2033. The proposed LGTSF footprint will encompass 87.81 acres an additional 38.9 acres of disturbance associated with roads and infrastructure will be disturbed resulting in a total of 126.71 acres. The LGTSF is expected to provide storage for 5.8 million cubic yards of material which should provide storage at the current mining rate until 2043 to 2045. The DFWRSA is proposed to be constructed to the north of the current mine site. The proposed DFWRSA footprint will encompass 57.02 acres with an additional associated disturbance of 38.53 for a total of 95.55 acres. Of the 95.55 Acres to be disturbed 45.99 are USFS and 49.56 are privately owned by SMC. The DFWRSA will be built in three stages with construction stages proposed to begin in 2025, 2028, 2035. Infrastructure to support construction of the waste rock facility is expected to be constructed in 2024. Total storage will be 5.4 million cubic yards of waste rock which at the current mining rate should provide waste rock storage until 2036 to 2047. Both facilities will have HDPE lined underdrain collection water management systems.

Legal Notice

ES Stone and Structure, Inc. (ES Stone) filed an application for an amendment (008) with the Department of Environmental Quality to reduce the number of sites from 21 to 8 by the removal from the permit of 3 sites (currently Sites #6, 8, and 9) that were withdrawn during the permitting process, 4 sites (currently Sites #3, 5, 7, and 10) that have had full bond release, and the combination of two sites: 1) Current Sites #13, 14, 16, 17 and 21 would be combined to proposed Site #6 and 2) Current Sites #18 and 19 would be combined to proposed Site #7. Additionally, permitted disturbance area would be added to Site #1 and proposed Site #7. Site #1 is located in Golden Valley County: Township 6 North, Range 19 East, Sections 16 & 17. Proposed Site #6 is located in Wheatland County: Township 8 North, Range 15 East, Sections 34 & 35 and Township 7 North, Range 15 East, Sections 02 & 03. Proposed Site #7 is located in Cascade County: Township 22 North, Range 01 East, Sections 27, 28, & 29 and Township 22 North, Range 02 East, Sections 25, 26, & 30. Mining on Site #1 and proposed Site #6 would expand the current practice of excavating surface sandstone. Mining would be to an average of 10 feet below ground surface. Rocks would be quarried with an excavator and then transported to a palleting/staging area using a skidsteer loader. The palleted rock would be loaded onto trucks for shipping off-site. Mining on proposed Site #7 would expand current the practice of harvesting surface sandstone rocks. The depressions left by rock removal would generally be about one foot deep. Surface rock would continue to be removed using hand tools, an excavator, or backhoe and transported to a palleting/staging area using a skidsteer loader. The palleted rock would be loaded onto trucks for shipping off-site. The amendment would add about 3,264 acres to the current operating permit area of about 5,686 acres.

Draft Environmental Assessment
Final Environmental Assessment
Decision Document

On March 30, 2020 Golden Sunlight Mine, Inc. (GSM) submitted to the Department of Environmental Quality (DEQ) an application to amend Operating Permit No. 00065. The amendment would allow GSM to reprocess tailings recovered from Tailings Storage Facility 1 (TSF-1) over a period of approximately 12 years using conventional excavation, loading, and conveyance equipment. The 26.2 million tons of tailings at TSF-1 cover an area of approximately 190 acres. Tailings would be recovered from TSF-1, then mixed with water to produce a slurry that would be pumped to the Flotation Plant in the existing Mill Building. The Flotation Plant would process approximately 6,400 tons per day of tailings. The Flotation Plant will allow recovery of residual gold values, reduce reactivity of the reprocessed tailings, and produce a sulfidic concentrate for market at a rate of approximately 455 tons per day. GSM would use the Mineral Hill Pit as a repository for disposal of reprocessed tailings. For final reclamation, a growth media cover will be placed on the tailings surface and seeded to control dust and minimize infiltration of precipitation. Flotation tailings fill material in the Mineral Hill Pit will have a surface area of approximately 35 acres. Implementation will not require a change in the approved water management system for the Mineral Hill Pit. Flotation tailings process solution combined with existing Mineral Hill Pit seepage and the bedrock aquifer will continue to be managed in accordance with the current approved system. GSM would continue to maintain the cone-of-depression in the groundwater table surrounding the Mineral Hill Pit through use of the underground sump. The existing dewatering system will effectively control seepage water from the tailings, ultimately pumping the sump water to TSF-2.

On February 5, 2021, GSM submitted a modification to the proposed amendment application. This modification would relocate the Re-Pulping Facility and related infrastructure, as well as update the associated plans for the operation and reclamation of that facility. On February 10, 2021, DEQ issued a determination that the modification does not constitute a substantial change to the amendment application nor the compliance determination that DEQ issued on October 26, 2020. The Modified Final Application will be the Proposed Action analyzed in the Environmental Impact Statement (EIS).

Modified Final Application
Modification Determination
Legal Notice
Draft Environmental Impact Statement

On August 21, 2020 Meadow Holdings, LLC (MHL) submitted a revision request to update the reclamation plan for Operating Permit No. 00044. On November 16, 2021 and May 4, 2021 MHL submitted responses to comments by DEQ on that revision request. The amendment increases the permit area to 285 acres, modifies the reclamation plan and proposes to pump water from the existing settling pond through a pipe to a proposed Hard Rock Operating Permit mine located immediately north of Operating Permit No. 00044 and operated by Meadow Holdings, LLC. The water would be used to process ore to recover sapphires and trace amounts of gold.

Pending Applications

Montana Frontier Sandstone, LLC (MFS) has filed an application with the Department of Environmental Quality for an operating permit under the Metal Mine Reclamation Act. The operating permit would authorize a quarry mine operation for the purpose of recovering sandstone for masonry and landscape use. The proposed site, the Jones Quarry, is located about 5 miles southwest of Harlowton, MT in Section 10, Township 7 North, Range 15 East, in Wheatland County for a total permit area of about 40 acres. MFS currently operates in this location under a Small Mine Exclusion Statement and needs an operating permit due to proposed expansion of the site. MFS proposes to disturb approximately 30 acres over a life of mine of about 25 years. The site is on private land and would employ 10-14 seasonal employees.

Draft Environmental Assessment

Final Environmental Assessment

Decision Document

On February 28, 2020, an application for a Hard Rock Mining Operating Permit was submitted by Potentate Mining, LLC (Potentate) for a site located in Granite County. Potentate filed the application with the Department of Environmental Quality for an operating permit under the Metal Mine Reclamation Act. If approved, the operating permit would authorize a placer mine operation for the purpose of recovering sapphires and a minor amount of placer gold. The proposed site is located about 22 miles southwest of Philipsburg, MT in Section 15, and parts of Sections 16, 17, 20, 21 and 22, Township 6 North, Range 16 West, in Granite County for a total permit area of about 2,800 acres. Potentate currently operates in these locations under an Exploration License and Small Mine Exclusion Statement and needs an operating permit due to proposed expansion of the site. Potentate proposes to disturb approximately 2,321 acres over a life of mine of about 30 to 40 years. The site is on private land and would employ up to 24 full and part time employees.

Decision Letter
Final Environmental Assessment
Draft Environmental Assessment

On July 14, 2020, an application for a Hard Rock Mining Operating Permit was submitted by C3 Limited Liability Company (C3) for a site located in Granite County. C3 filed the application with the Department of Environmental Quality for an operating permit under the Metal Mine Reclamation Act. If approved, the operating permit would authorize a placer mine operation for recovering sapphires. The proposed site is located about 22 miles southwest of Philipsburg, MT in parts of Sections 16, 17, 20, and 21, Township 6 North, Range 16 West, in Granite County for a total permit area of about 376 acres. C3 currently operates in these locations under an Exploration License and Small Mine Exclusion Statement and needs an operating permit due to proposed expansion of the site. C3 proposes to disturb approximately 174 acres over a life of mine of about 20 years. The site is on private land and would employ up to 4 full and part time employees. C3 sells washed gravel and sapphire concentrate it produces to Cooney’s Sapphire Village Inc. (CSVI). CSVI would employ up to 36 full or part time employees..

DEQ received an application for an exploration license from Butte Blackjack Operating, LLC on June 15, 2021, to drill 37 exploration holes from 12 drill pads, and repair the Chief Joseph portal in order to extract 500 tons of material for metallurgical testing. The entire proposed project would be located on private land and disturb about 3.44 acres.

Draft Environmental Assessment 

Recent Actions & Approvals

Company & Project Name Date Published
Yellowstone Mine
Imerys Talc America, Inc.
Operating Permit #00005
Final Environmental Impact Statement
Draft Environmental Impact Statement



July 31, 2006
December 22, 2004
Warren Quarry
Big Horn Limestone Company
Operating Permit #00008
Amendment for Quarry Expansion
Final Environmental Assessment
Draft Environmental Assessment




February 14, 2007
Barretts Mill
Barretts Minerals Inc.
Operating Permits #00009
Amendment 005
Draft Environmental Assessment
Final Environmental Assessment




April 4, 2007
January 30, 2007
Regal Mine
Barretts Minerals Inc.
Operating Permit #00013
Amendment 006
Record of Decision
Final Environmental Impact Statement
Draft Environmental Impact Statement

Final Environmental Assessment
Draft Environmental Assessment




April 20, 2020
March 2020
December 2019

April 4, 2007
January 30, 2007
Little Bear Construction, Inc.
Drummond Quarry
Operating Permit #00022
Amendment 001
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment




May 20, 2021
May 20, 2021
April 13, 2021
Montana Resources, LLP
Yankee Doodle Tailings Impoundment
Operating Permit #00030 & 00030A
Record of Decision 
Final Environmental Impact Statement
Draft Environmental Impact Statement



August 30, 2019
August 13, 2019
March 2019
Schellinger Construction Co.
Essex Quarry
Operating Permit #00045
Amendment 001
Decision Document
Final Environmental Assessment
Draft Environmental Assessment




December 14, 2020
December 14, 2020
November 9, 2020
Golden Sunlight Mines, Inc.
Golden Sunlight Mine
Operating Permit #00065
Amendment 011
Record of Decision
Cover Letter
Final Supplemental EIS
Draft Supplemental EIS
Amendment 012
Environmental Assessment
Amendment 013
Cover Letter
Draft Environmental Assessment
Amendment 014
Final Environmental Assessment
Draft Environmental Assessment
Amendment 015
Record of Decision
Final EIS
Draft EIS
Amendment 016
Draft Environmental Assessment
Final Environmental Assessment




August 17, 2007
July 2007
July 2007
December 2004

January 8, 2010

June 4, 2010
N/A

November 22, 2010
November 4, 2010

January 9, 2014
December 2013
September 2013

August 2018
October 2018

Troy Mine Inc.
Troy Mine
Operating Permit #00093
Amendment 006
Final Environmental Assessment
Draft Environmental Assessment
Cover Letter
Record of Decision

Record of Decision Cover Letter
Record of Decision for a Revised Reclamation Plan
Final Environmental Impact Statement
Appendices
Draft Environmental Impact Statement Cover Letter
Executive Summary
Draft EIS Text Part 1
Draft EIS Text Part 2
Appendices





September 2017

January 2018
January 8, 2018
January 8, 2018

September 20, 2012
September 2012
June 2012
N/A

June 23, 2011
May 4, 2011
May 2011
Indian Creek Mine and Plant
Graymont Western US Inc.
Operating Permit #00105
Record of Decision
Final EIS
Draft EIS



October 2010
June 2010
December 2008

Montana Tunnels
Montana Tunnels Mining, Inc.
Operating Permit #00113
Amendment 009
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment

Amendment 008 (M-Pit Expansion)
Cover Letter
Record of Decision
Final Environmental Impact Statement
Draft Environmental Impact Statement


July 24, 2020
July 24, 2020
July 24, 2020
March 5, 2020


October 27, 2008

August 2008
February 2008
Nye
Stillwater Mining Company
Operating Permit #00118
Expanded Checklist Environmental Assessment
Record of Decision: Revised Water Management Plan and Boe Ranch LAD
Final EIS Draft EIS



July 22, 2010
August 1, 2012
May 2012
N/A

November 2010
N/A
N/A
Kendal Mine
CR Kendall Corporation
Operating Permit #00122
Cover Letter
Final EIS
Cover Letter
Draft EIS



April 15, 2016
April 15, 2016
October 8, 2015
September 11, 2015
Sibanye Stillwater Mining Company
East Boulder Mine
Operating Permit #00149
Amendment 003
Decision Document
Cover Letter
Final Environmental Assessment (with Errata)
Draft Environmental Assessment

Biological Evaluation Aquatics
Biological Evaluation Vegetation
Biological Evaluation Wildlife




September 22, 2020
September 11, 2020
May 15, 2020
Pipestone Quarry
Pipestone Quarry, LLC
Operating Permit #00148
Draft Checklist Environmental Assessment



March 9, 2015
Montanore Mine
Montanore Minerals Corp.
Operating Permit #00150
Record of Decision
Final Environmental Impact Statement
Supplemental Environmental Impact Statement
Draft Environmental Impact Statement



February 2016
December 2015
September 19, 2011
February 25, 2009
Garnet USA
Garnet USA, LLC.
Operating Permit #00157
Record of Decision
Final EIS
Cover Letter Draft EIS
Draft EIS



March 2014
N/A
February 20, 2014
September 2013
Ruby Valley
Garnet USA, LLC
Operating Permit #00157
Amendment and Partial Bond Release
Final Environmental Assessment
Draft Environmental Assessment




November 21, 2011
May 7, 2015
ES Stone & Structure, Inc.
Multiple Quarry Permits
Operating Permit #00163
Final Environmental Assessment
Draft Environmental Assessment
Amendment 001
Final Environmental Assessment
Draft Environmental Assessment
Amendment 003
Final Environmental Assessment
Draft Checklist Environmental Assessment
Amendment 005
Draft Environmental Assessment
Amendment 006
Final Environmental Assessment



September 29, 2005
July 12, 2005

June 29, 2006
April 10, 2006

November 23, 2010
October 6, 2010

November 3, 2014

July 6, 2016
Big Sky Masonry Stone, Inc.
Multiple Quarry Permit
Operating Permit #00164
Draft Environmental Assessment
Draft Environmental Assessment



August 25, 2008
September 28, 2005
Moonlight Basin
Moonlight Basin Ranch, Inc.
Operating Permit #00165
Final Environmental Assessment
Draft Environmental Assessment



June 19, 2006
September 29, 2005
Bozeman Construction Company dba Bozeman Brick, Block & Tile
Multiple Quarry Permit
Pending Operating Permit #00166
Final Environmental Assessment
Draft Environmental Assessment



August 7, 2006
June 23, 2006
Plum Creek Timberlands, L.P.
Multiple Quarry Permit
Operating Permit #00167
Record of Decision
Final Environmental Impact Statement
Draft Environmental Impact Statement

Draft Checklist Environmental Assessment
Final EA Poker Hill and Lower Twin Rock Sites



December 1, 2006
October 24, 2006
April 24, 2006


June 29, 2010
Apex Abrasives
Apex Abrasives Inc.
Operating Permit #00168
Final Environmental Assessment
Draft Environmental Assessment



November 15, 2006
September 7, 2006
Bullock Construction
Operating Permit - #00169
Draft Environmental Assessment
Map


November 16, 2006
Black Hat Quarry
Lyle "Bud" Colby
Operating Permit #00170
Draft Environmental Assessment
Colby Site Map
Voise Site Map



December 18, 2006
N/A
N/A
Tom Gauger Site
Tom Gauger
Operating Permit #00171
Draft EA for Application of Operating Permit
Final CEA Letter



December 21, 2010
February 2, 2011
Golden Dream Project
Elkhorn Goldfields, Inc.
Operating Permit #00173
Final Environmental Assessment
EA Cover Letter
Draft Environmental Assessment


July 21, 2008
N/A
April 30, 2008
April 2008
North Pit
Valley Sand & Gravel, LLC
Operating Permit #00174
Final Environmental Assessment
Map
Cover Letter
Draft Environmental Assessment



January 12, 2009
January 12, 2009
November 13, 2008
November 13, 2008
Montana Rockworks, Inc.
Multiple Quarry Permits
Operating Permit #00175
Final Environmental Assessment
Draft Environmental Assessment



December 28, 2007
April 12, 2007
Jesson Rock-N-Ranch
Jesson Ranch Management, LLC
Operating Permit #00176
Final Environmental Assessment
Draft Checklist Environmental Assessment
Amendment 001
Draft Checklist Environmental Assessment(CEA)
Final Environmental Assessment



July 11, 2008
April 4, 2008
September 20, 2010
October 20, 2010
Butte Highlands
Butte Highlands JV, LLC
Pending Operating Permit #00178
Draft EIS



October 2013
Shonkinite Quarry
Shumaker Trucking and Excavating Contractors, Inc.
Operating Permit #00179
Green Coulee
Checklist Environmental Assessment
Fort Shaw Sites
Checklist Environmental Assessment
Chinnook
Checklist Environmental Assessment




 
Voise Quarry
Operating Permit #00180
Draft Environmental Assessment


April 23, 2019
Nickelback Quarry
Noble Excavating, Inc.
Operating Permit #00182
Final Environmental Assessment
Draft Environmental Assessment



April 16, 2012
March 7, 2012
Golden Rule
Golden Rule Placer Mining, LLC
Operating Permit #00183
Final Checklist Environmental Assessment
Draft Checklist Environmental Assessment



July 2, 2013
May 22, 2013
Geyser Mine
CRH US
Operating Permit #00184
Amendment 002
Final Environmental Assessment
Draft Environmental Assessment
Final Environmental Assessment
Draft Environmental Assessment



February 2021
March 23, 2021
May 2013
April 2013

Block Mountain Slate and Stone, Inc.
Multiple Quarry Permit
Pending Operating Permit #00185
Draft EA



May 12, 2016
Montana Limestone Resources, LLC
Montana Limestone Resources Mine
Draft Environmental Assessment
Final Environmental Assessment
Appendix A
Decision Letter


November 18, 2019
March 6, 2020

April 15, 2020
Tintina Montana, Inc.
Black Butte Copper Mine
Operating Permit #00188
Record of Decision
Final Environmental Impact Statement
Draft Environmental Impact Statement



April 2020
February 2020
March 11, 2019
Venture Stone
Venture Stone, LLC
Operating Permit #00189
Amendment 001
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment

Draft Environmental Assessment




October 26, 2020
October 26, 2020
August 28, 2020

January 6, 2017
Glacier Stone Supply LLC
Canyon Creek / Glacier Mountain Sites
Operating Permit #00190
Draft Environmental Assessment
Final Environmental Assessment



March 10, 2020
April 17, 2020
Overman Western Stone
Ibex Quarry
Operating Permit #00195
Final Environmental Assessment
Environmental Assessment



September 19, 2019
August 6, 2019
Rock Creek Project
RC Resources, Inc.
Operating Permit #00197
Final Environmental Assessment
EA Cover Letter
Draft Environmental Assessment EA for a Revised Evaluation Adit Plan
Appendix A List of Stipulations
EA Figures, Exhibit, and Table



December 22, 2008
August 13, 2008
July 21, 2008
 
Huppert Brothers Construction, Inc.
Huppert Brothers Construction, Inc. 
Operating Permit #00198
Final Environmental Assessment
Draft Environmental Assessment



April 8, 2020
February 26, 2020
Bullock Contracting, LLC
Devil's Elbow Quarry
Operating Permit #00199
Draft Environmental Assessment
Final Environmental Assessment
Decision Document



February 26, 2020
September 21, 2020
Drumlummon Mine
RX Exploration, Inc.
Exploration License #00674
Final Checklist Environmental Assessment
Response to Public Comments
Press Release -Extended Comment Period
Draft Environmental Assessment - App. for Partially Dewatering



March 12, 2009
March 12, 2009
January 23, 2009
January 9, 2009
Timberline Resources Corp.
Exploration License #00680
Final Checklist Environmental Assessment


August 18, 2009
Ash Grove Cement Company
Clark Gulch Shale-Clay Exploration Project
Exploration License #00684
Amendment 3
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment
Draft Environmental Assessment
Final Environmental Assessment





April 23, 2021
April 23, 2021
December 9, 2019
February 10, 2020
Black Butte Copper
Tintina Montana Inc.
Exploration License #00710
Amendment to Exploration License
Final Environmental Assessment
Draft Environmental Assessment
Aquifer Pump Test 2014
Cover Letter
Aquifer Pump Test Environmental Assessment




January 14, 2014
July 15, 2013
N/A

August 7, 2014
June 30, 2014
Lucky Minerals Inc.
Emigrant Exploration
Exploration License #00795
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment



July, 26, 2017
Blue Arc LLC
Exploration License #00846
Decision Letter
Final Environmental Assessment
Draft Environmental Assessment


February 1, 2021

February 1, 2021
October 28, 2020
General Quarry Permit
Final Supplemental EA
Draft Supplemental EA

March 30, 2004
February 1, 2004