The spatial databases represent the original content of 43 published geologic maps, provide normalized map unit descriptions, and provide additional information and interpretation not in the original reports.

Geologic map unit and lithologic descriptions used in Open File Report 2005-1235, with extensive bibliographic references to geologic literature that could not be included in the spatial database.

Permissive tracts for a variety of types of mineral deposits, with information about deposits that have already been mined.

U-Pb geochronology and isotopic studies of select plutons across the Salmon River suture in western Idaho.

Detailed descriptions of more than 200 mineral districts, mines, and mineral occurrences (deposits, prospects, and showings) within the United States that are reported to contain substantial enrichment of rare earth elements.

Geologic unit contacts, faults, dikes, and folds in this area, in map form as well as geospatial datasets.