Don Newton, AML Administrator

Our AML staff is here to assist you with questions and concerns that you may have regarding Abandoned Mine Lands in Wyoming.

Abandoned Mine Land Division
200 West 17th Street,
Suite 400
Cheyenne, WY 82001

Abandoned Mine Land Field Office
510 Meadowview Dr.
Lander, WY 82520

AML Magazine

The AML Magazine highlights various projects the division works on yearly. 

AML Public Facilities

The Abandoned Mine Land Division (AML) is announcing the opening of the application process for the Public Facilities program.  This program is focused on assisting local communities and other public entities to mitigate the impacts of historic coal and mineral mining and processing.  AML anticipates having a total of $20 million available for project funding.

For more information about the application process, please contact Dave Pendleton or Mila Brown with AML at (307) 335-6945 or (307) 332-5085 or via email:

Rules and Regulations

All official Wyoming State Rules and Regulations are kept at the Wyoming Secretary of State's Office. Click here to view all current Rules and Regulations. 


AML oversees the reclamation of abandoned mine lands within the state – and there are past and ongoing initiatives to restore these lands to safe conditions. Over the years, we have put thousands of acres of damaged lands back into productive use by hiring consultants and contractors to clean up and restore abandoned coal, bentonite and uranium open pit mines.

Reliance, WY Reclamation Project

The Reliance Coal Mining District is one of the largest and most varied coal mine reclamation projects completed by the Wyoming Department of Environment Quality, Abandoned Mine Land Program (AML).

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Powars II – North America’s oldest known Abandoned Mine

The Powars II Paleoindian Archaeological Site in Sunrise – believed to be the oldest known mining operation in both North and South America – would have been wiped out if former Sunrise resident Wayne Powars hadn’t shown up for a school reunion one day before the scheduled demolition.

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Our Work’s Not Done

Since 1977, states have been successful reclaiming and remediating historic abandoned mine lands throughout the country. Even with these successes, thousands of sites remain. Open mine pits and shafts, mine subsidence features from historic underground mining, mine fires and impacted watersheds all pose public health and safety risks. Our continued efforts will return the lands back to previous use and re-establish appropriate habitat for wildlife.

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