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Original source information includes company mine maps, field maps and notes of IGS geologists, IGS publications, Indiana State Mine Inspector Reports, several series of aerial photographs, …

111 layers from this IndianaMap site have been migrated to the new IndianaMap site.In April 2023, these layers will no longer be available from this site. These layers are from the …

QUADRANGLES_24K_USGS_IN is a polygon shapefile defining the boundaries of the USGS 7.5-minute (1:24,000-scale) quadrangles which cover the state of Indiana. Dates of publication …

These reports included maps showing extent of the Colchester Coal Member (Linton Formation, Pennsylvanian). The extent maps were based on coal-test records, mine-map notations, and …

Highways (INDOT), 2004 - Shows Interstate, U.S., and State Highways of Indiana, with route numbers and number of lanes

KARST_SPRINGS_MM65_IN is a point shapefile that shows the locations of springs in and around the karst region of south-central Indiana. Purpose: KARST_SPRINGS_MM65_IN was …

INDUSTRIAL_MINERALS_POINTS_IN is a shapefile that shows the distribution of stratigraphic data for various industrial minerals in Indiana. These data were derived from six different types …

This dataset shows the boundaries of Indiana Senate Districts for the 119th General Assembly and provides the names and party affiliations of the legislators.

SURFICIAL_GEOL_MM49_IN is a polygon shapefile that shows surficial geology in Indiana at a scale of 1:500,000. The mapped units include textural assemblages of quaternary sediments …