Mine plants and operations for commodities monitored by the National Minerals Information Center of the USGS. Operations included are those considered active in 2003 and surveyed by the USGS.
A compilation of fossil and mineral collecting localities, with maps, in western Massachusetts by Alan R. Plante.
A PDF of popular Massachusets Mineral and fossil localities compiled by Peter Gleba in 1978, revised in 2008.
MRDS is a collection of reports describing metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic...
"Mindat is the largest mineral database and mineralogy reference website on the internet. This site contains worldwide data on minerals, mineral collecting, mineral localities and other...
The MA Geological Survey
Department of Geosciences
269 Morrill Science Center
University of Massachusetts
611 North Pleasant Street
Amherst, MA 01003-9297