US DEPARTMENT OF THE INTERIOR (DOI)
OFFICE OF SURFACE MINING RECLAMATION AND ENFORCEMENT (OSM)

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US Dept. of the Interior
Office of Surface Mining
Washington, DC 20240
202-208-2719

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LAST UPDATED 07/26/2013
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National Mine Map Repository (NMMR)

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What is NMMR?

The National Mine Map Repository (NMMR), is part of the United States Department of the Interior, Office of Surface Mining Reclamation and Enforcement.  It is a facility that provides and stores in microfilm over 134,000 abandoned mine maps. The repository contains maps from the 1860s to the present day. It serves as a point of reference for mine maps and other information for both surface and underground mines throughout the United States. It also serves as a location to retrieve mine maps in an emergency.

What Information is Available?

The NMMR contains microfilm maps of surface and underground coal, metal and non-metal mines throughout the United States. Some of the information that can be found in the repository includes:

  • Mine and company names
  • Mine plans including mains, rooms, and pillars
  • Closure maps
  • Adjacent mines
  • Man-ways, shafts, mine surface openings
  • Geological information including bed name, bed thickness, depth, drill-hole data, cross-sections, elevation contours, structures, coal quality data, outcrops, and mineral assays
  • Geographical data including abandoned railroad lines and stations, coal towns, surface facilities, roads, ponds, streams, and property survey points
  • Gas well and drill-hole locations