The Geologic Data Subcommittee (GDS) of the Federal Geographic Data Committee (FGDC) is responsible for coordination of geologic data-related activities

FGDC Digital Cartographic Standard for
Geologic Map Symbolization

The standard is provided here in PDF format, which is best for viewing and plotting.
A limited number of paper copies will soon be available.

The standard also is available in PostScript format.
An ArcGIS 9.3 version is available.
Questions? Please contact Dave Soller and Taryn Lindquist.


More information


DO YOU HAVE THE LATEST VERSION OF THE STANDARD?
Check here.

NOTE: If you prefer, we have
organized the symbols thematically, here.