THE NATIONAL MINE MAP REPOSITORY
MAP ACQUISITION

The NMMR acquires maps through a vigorous outreach program directed at the public and state and federal environmental agencies. Other sources include: mining companies, engineering and consulting firms, surveying companies, universities, and private citizens. We are always looking for donations of mine maps to add to our microfilm/digital collection. If you have mine maps you would like to donate see the contact information below.

When maps are received from a donor they are scanned and converted to microfilm, and placed in the archive. The maps, along with a scanned images are returned to the donor. Please don't hesitate to contact the Repository if you have any questions or wish additional information.

NMMR Procedures:

As maps are obtained at the Repository, they are assigned a unique six-digit identification number (document number). Data sheets are prepared for each map giving all available information including: map document number; state; county; mine name; mine ID number (MSHA); company name; mine type; and the Universal Transverse Mercator (UTM) grid zone, and the latitude and longitude of the geo-located point on the map. This information is input into the Mine Map Index System. The maps are then scanned into a digital format and stored on the Repository's dedicated 42 terabyte mass storage array. The digital files are converted to microfilm for permanent storage in our archive.

NMMR HOME PAGE

The contacts, office locations, and telephone numbers for the repositories are:

Notice: Mine maps within the National Mine Map Repository are not guaranteed to be accurate, correct or complete. These maps have been donated to the Office of Surface Mining Reclamation and Enforcement from various sources and the mines, streets, surface features and coal elevations cannot be verified. OSM does not warrant the accuracy of the mine maps within the NMMR, or the reliability of findings based upon data from the maps or from digital mapping programs.