UNITED STATES

DEPARTMENT OF THE INTERIOR

This mining plan approval document is issued by the United States of America to: 

Twentymile Coal, LLC

29515 RCR27 

Oak Creek, CO 81467 

for a mining plan modification to mine within Federal Coal Lease COC54608 at the Foidel 

Creek Mine. This mining plan approval supplements all previous mining plan approvals for the 

Foidel Creek Mine. The approval is subject to the following conditions. Twentymile Coal, LLC

is hereinafter referred to as the operator.

l. Statutes and Regulations. This mining plan approval is issued pursuant to Federal Coal 

Lease COC54608; the Mineral Leasing Act of 1920, as amended (30 U.S.C. 181 et seq.); 

and in the case of acquired lands, the Mineral Leasing Act for Acquired Lands of 1947, 

as amended (30 U.S.C. 351 et seq.). This mining plan approval is subject to all 

applicable laws and regulations of the Secretary of the Interior which are now or hereafter 

in force; and all such laws and regulations are made a part hereof. The operator shall 

comply with the provisions of the Federal Water Pollution and Control Act (33 U.S.C. 

1251 et seq.), the Clean Air Act (42 U.S.C. 7401 et seq.), and other applicable Federal 

laws.

2. This document approves the mining plan modification for Federal Coal Lease COC54608 

at the Foidel Creek Mine and authorizes coal development or mining operations on the 

Federal leases within the area of mining plan approval. This authorization reaffirms the 

approved mining plan area located within Federal coal lands.

COC54608 

Sixth PM, T5N, R86W; 

SEC. 21: N1⁄2NW1⁄4, N1⁄2S1⁄2NW1⁄4, N1⁄2S1⁄2SW1⁄4NW1⁄4, N1⁄2SW1⁄4NE1⁄4, 

N1⁄2NE1⁄4;

SEC. 22: N1⁄2NW1⁄4 

These lands encompass approximately 310 Federal coal acres and are shown on the 

mining plan approval area map attached hereto as Attachment A.

3. The operator shall conduct coal development or mining operations only as described in 

the complete permit application approved by the Colorado Division of Reclamation, 

Mining and Safety, except as otherwise directed in the conditions of this mining plan 

approval. 

4. The operator shall comply with the terms and conditions of the leases, this mining plan 

approval, and the requirements of the Colorado Permit No. C-1982-056 issued under the 
Mining Plan Modification for Federal Lease 

COC54608 at the Foidel Creek Coal Mine Page 2 of 2

Colorado State program, approved pursuant to the Surface Mining Control and 

Reclamation Act of 1977 (30 U.S.C. 1201 et seq.).

5. This mining plan approval shall be binding on any person conducting coal development 

or mining operations under the approved mining plan and shall remain in effect until 

superseded, canceled, or withdrawn.

6. If, during mining operations, unidentified prehistoric or historic resources are discovered, 

the operator shall ensure that the resources are not disturbed and shall notify the Colorado 

Division of Reclamation, Mining and Safety and the Office of Surface Mining 

Reclamation and Enforcement. The operator shall take such actions as are required by

the Colorado Division of Reclamation, Mining and Safety in coordination with the Office 

of Surface Mining Reclamation and Enforcement. 

7. The Secretary retains jurisdiction to modify or cancel this approval, as required, on the 

basis of further consultation with the U.S. Fish and Wildlife Service pursuant to section 7 

of the Endangered Species Act, as amended, 16 U.S.C. 1531 et seq. 

Attachment