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Pogo Mine

Project Description

The Pogo Mine is an underground cut-and-fill operation using gravity, flotation, and cyanide leaching processes to recover gold. The mine is located 38 miles northeast of Delta Junction, Alaska, on land owned by the State of Alaska. Access to the mine is via a 49-mile all season road from the Richardson Highway. The project is operated by Sumitomo Metal Mining Pogo LLC (SMMPogo). The major Pogo Mine facilities include the Pogo underground mine, surface mill, dry stack tailings facility, water management systems, administrative facilities, 250 person upper camp and 203 person lower camp with recreation and catering facilities. Power is supplied from the regional grid via a 50-mile transmission line paralleling the access road. The mine was originally permitted in 2003, and operates 24-hours a day, 365 days a year. . In 2016, SMMPogo employed 304 people and had zero lost time incidents. SMMPogo produced 269,342 ounces of gold, mined 1,515,117 tons (ore & waste), and milled 941,856 tons. SMMPogo placed 12,812,069 cu.ft of paste fill in the underground workings.

Environmental Audits
December 2016
Financial Assurance
Financial Assurance
Permits, Approvals and Authorizations
Department of Natural Resources (DNR)

Department of Environmental Conservation (DEC)

Archive of prior authorizations, financial assurance, and public process

Support Documents

2012 Drystack Tailings Facility Expansion

Request for Amendment (Rev 2) to Plan of Operations F20129500 by Sumitomo Metal Mining Pogo LLC (Pogo) for Drystack Tailings Facility (DSTF) Expansion from 7.5 to 20 Million Tons (MTons) Including Construction of a New Diversion Ditch (PDF) (March 12, 2012)

2012 Pogo DSTF Construction and Maintenance Plan (PDF) (March 2012)

Pogo Mine Dry Stack Tailings Facility Expansion Preliminary Study (PDF) (May 16, 2011)

Plan of Operations

2012 Pogo Plan of Operations (PDF) (March 2012)

  1. Updated Plan of Operation’s Figures:
    1. Figure 1.3 (PDF)
    2. Figure 1.3a (PDF)
    3. Figure 1.3b (PDF)
    4. Figure 1.3d (PDF)
    5. Figure 7.1 (PDF)

2012 Pogo Reclamation and Closure Plan (PDF) (March 2012)

  1. Updated Reclamation and Closure Plan Figures:
    1. Figure 2.3 (PDF)
    2. Figure 4.6 (PDF)
    3. Figure 4.7 (PDF)
    4. Figure 4.8 (PDF)
    5. Figure 4.9 (PDF)

November 2011 Pogo Plan of Operations (PDF)

Note: You can request and receive an Excel version of the Cost Estimates

  • Excel File for Pogo Mine Reclamation Cost Estimate Final 3-20-2012
  • Excel File for Pogo Mine Reclamation Cost Estimate November 2011

Pogo Mine Inflow Evaluation and Control Review (PDF) (Adrian Brown, April 5, 2009)

Pogo Project Water Management Plan February 2002 (PDF)

Pogo Project Water Management Plan June 2002 Supplement (PDF)

In 2003 a Federal Environmental Impact Statement (EIS) was completed. The State of Alaska was a cooperating agency in the EIS process, and has used the EIS to assist in decision making for its authorizations.

Annual Meetings and Annual Reports

For a copy of Electronic Appendix G, please contact: DNR Large Mine Coordinator (see bottom of page)

Archive of Annual Meetings and Reports for prior years

For More Information Contact

State of Alaska Large Mine Permitting Team
Kyle Moselle
Large Mine Coordinator
Alaska Department of Natural Resources
Office of Project Management and Permitting
400 Willoughby Avenue, Suite 400
Juneau, AK 99801
Phone:(907) 465-6849
Fax: (907) 465-3886