Mining and Quarrying in Maine

Virtual Tour

  • Our virtual tour (PDF, 2.8Mb) is a series of photos which portray some of the history and types of Maine mining and quarrying.

Frequently Asked Questions


Geologic Information

  • Metallic Mineral Deposits of Maine (map)
    • Known occurrences of metallic minerals shown on a generalized geologic map of Maine. Locations of ten "significant" deposits also shown. For more information, see Maine's Mineral Resources database.
  • Maine's Mineral Resources (database)
    • Comprehensive information about metallic and non-metallic mineral resources compiled for 1083 sites in Maine, including occurrences, showings, prospects, significant deposits, and historical mines. Available as Google Earth maps and as a database for download. Includes town, reported commodities, site characteristics, and source information for each locality.
  • Core Repository and Mineral Exploration Data
    • The Maine Geological Survey maintains a repository of rock core obtained by diamond drilling for mineral exploration projects over many years. In addition to the physical rock core that have been donated to the Maine Survey, there are associated paper records, which include such things as maps of drill core locations, technical logs of drill core, and a limited amount of geochemical and geophysical information and geologic reports.
  • Publication Search
    • To search for mineral investigation reports, aeromagnetic and gravity maps, enter appropriate keywords in our Publication Search page.

Fact Sheets


Last updated on March 29, 2013