OFFICE of SURFACE MINING
RECLAMATION and ENFORCEMENT

U.S. Department of the Interior

National Mine Map Repository (NMMR) Logo

National Mine Map Repository

"Preserving Mine Maps for Future Generations"


Mine Map Compass Arrow

Celebrate Winter
up North!

This winter we will be sharing some of the coolest #NorthArrows from our maps! Follow along with us.



The National Mine Map Repository (NMMR) collects and maintains mine map information and images for the entire country. As an extension of the Office of Surface Mining Reclamation and Enforcement (OSMRE), NMMR acquires maps through public outreach efforts directed at state and federal agencies as well as mining companies, engineering and consulting firms, surveying companies, universities, and private citizens.

Contact NMMR

Please contact the NMMR for the following requests:

  • If you have mine maps that you would permit the repository to scan and add to the collection. See our Map Acquisition page for more information.
  • If you would like to acquire digital copies of mine maps.
  • To determine if property is undermind

Office Hours: 7:30 a.m. to 4:00 p.m.; Monday - Friday by appointment.

Office of Surface Mining Reclamation and Enforcement
National Mine Map Repository
3 Parkway Center
Pittsburgh, PA 15220
Fax: (412) 937-2888
Phone: (412) 937-2833
Email: nmmr@osmre.gov


Office of Surface Mining Reclamation and Enforcement Disclaimer: Mine maps within the Office of Surface Mining Reclamation and Enforcement (OSMRE), National Mine Map Repository (NMMR) are not guaranteed to be accurate, correct, or complete.

All maps in the NMMR have been donated to the OSMRE.  The information contained therein cannot be verified and so cannot be guaranteed.

OSMRE’s inability to guarantee includes, but is not limited to, the following:

  • The accuracy of the mine maps within the NMMR.
  • The reliability of findings based upon data from the maps.
  • The reliability of findings from digital mapping programs.
  • The completeness of the maps, as they may not reflect prior or more recent mining.
  • The accuracy of any georeferenced mine maps found in the NMMR.