This page contains options for searching the NMMR database to find maps. Please note: Map images are not available for download from this site. They can be requested by contacting NMMR staff and providing them with the desired Document Numbers. NMMR staff also have additional search capabilities and can fulfill more complex requests if necessary. See the NMMR website homepage for contact information: https://mmr.osmre.gov

Using the Search Options

Apply as many search options as desired to narrow down the resulting maps in the table. All entered search options must be true for a map to appear in the results.

• State, County, and Commodity can be chosen from a list in the drop-down box
• The Mine Name and Company Name searches can contain up to two * characters, which act as wildcards
• The NMMR uses the following terms which must be spelled the same way to perform an accurate search:
  • "#" for the word "number"
  • "&" for the word "and"
  • Abbreviations for business suffixes (e.g. CO, LLC, LTD, INC, CORP)
  • No other punctuation or abbreviations are used
• The Document Number search takes an input of a single number, a number in a list, or a range of numbers separated by a dash
• The Latitude/Longitude radius search takes an input of decimal degrees coordinates
  • In Google Maps, they can be found in the box that appears by right-clicking on the map and choosing "What’s Here?"
  • In Bing Maps or MapQuest, they can be found in the menu that appears by right-clicking on the map

Understanding the Results

The data columns in the resulting table are explained in the NMMR Data Dictionary. The "Overview" and "WebMap" columns also have "pop-up" buttons, which display a new window with additional information. The "Document Overview" pop-up displays all the map and mine information for a document number on a single page, including additional data columns that are not in the table of results. The "ArcPortal" pop-up displays the NMMR web map zoomed in to the chosen mine.

Please note that an absence of NMMR data does not mean an absence of mining in a location. While the NMMR is continually adding maps to its collection, no collection is ever 100% complete. If you have maps you are interested in loaning or donating to add to this effort, please see the homepage for contact information.