Collections

Mining-Related Property Files and Map Files

This collection includes historical records related to engineering and geologic reports, pictures, correspondence, news clippings, and production information for over 4,700 mining claims, groups of claims, mining projects, deposits, mining districts and/or exploration projects from 51 Montana counties.

The contents of files related to the properties vary. They may include mineral information, production numbers, assays, mine status, claim maps, legal documents, geologic reports, surveys, correspondences, publications, and photographs. Available historic maps also vary, from surface claim boundaries to underground workings and cross sections.

These materials are accessible at our office in Butte, MT. A limited number of files are available for download through our archive search engine. However, a majority of records in the search engine provide a location of the property, but do not have associated downloadable files. These records can be made available in a variety of formats; contact the MBMG Data Preservation office for further information about accessing these records.