U.S. Geological Survey | Geologic Map Schema (GeMS) Map Conversion

Project Summary
DDS has performed multiple task orders to support the U.S. Geological Survey by vectorizing geologic maps for the National Geologic Map Database and converting them to GeMS (Geologic Map Schema).

GeMS (“Geologic Map Schema,” formerly “NCGMP09”) is the standard schema for geologic map publications funded by the U.S. Geological Survey’s National Cooperative Geologic Mapping Program (NCGMP). GeMS defines the capture, in a digital format, of the content contained on geologic maps. The databases are set up for Map Unit Polygons, contacts and faults, orientation data, overlay polygons, and all other geological lines and symbols, along with all the written information, such as descriptions of map units, source data, and other metadata.

Level 1 GeMS-compliant GIS data and metadata for each map.
Industries & Services
USGS - Geologic Map Schema