Geologic Maps of Idaho

Maps are available by county. To view maps, select the county of interest from the index map or the list of county names below.

List of Idaho Counties:

Ada
Adams
Bannock
Bear Lake
Benewah
Bingham
Blaine
Boise
Bonner
Bonneville
Boundary
Butte
Camas
Canyon
Caribou
Cassia
Clark
Clearwater
Custer
Elmore
Franklin
Fremont