National Mine Map Repository

The National Mine Map Repository (NMMR) is a facility established by the United States Department of the Interior to maintain and preserve mine maps and other related documents. Located in Pittsburgh, Pennsylvania, the repository serves as a central archive for maps of abandoned mines throughout the United States. The NMMR is an essential resource for mining engineers, geologists, historians, and environmental scientists.

History

The NMMR was established in 1970 in response to the Federal Coal Mine Health and Safety Act of 1969, which mandated the preservation of mine maps to ensure the safety of miners and the public. The repository was created to collect, preserve, and provide access to maps of abandoned mines, which are crucial for understanding the layout and conditions of these mines.

Collection

The repository houses an extensive collection of mine maps, including those from coal, metal, and non-metal mines. The maps vary in age, with some dating back to the 19th century. The collection includes hand-drawn maps, blueprints, and modern digital maps. The maps are used for various purposes, including mine safety, land reclamation, and historical research.

File:Hazleton Coal Company.jpg

A map from the Hazleton Coal Company

Access and Use

The NMMR provides access to its collection through an online database, where users can search for maps by location, mine name, or other criteria. The repository also offers assistance to individuals and organizations seeking specific maps or information. Researchers and professionals can visit the repository in person to view maps and documents.

Technological Advancements

The NMMR has embraced technological advancements to improve access to its collection. The repository has digitized many of its maps, making them available online. Additionally, the use of touch table technology allows users to interact with digital maps in innovative ways.

Interactive touch table technology at the NMMR

Importance

The maps preserved by the NMMR are vital for ensuring the safety of current mining operations and for planning land use in areas with abandoned mines. They help prevent accidents by providing detailed information about the location and condition of old mine workings. The maps are also valuable for historical research, offering insights into the history of mining in the United States.

Also see

• Mine safety
• Mining engineering
• Geological survey
• Land reclamation