Geologic Map: Challis 1 x 2 Quadrangle, Idaho

Description: Geologic Map of the Challis 1 x 2 Quadrangle, Idaho

Publisher: Idaho Bureau of Mines and Geology

Report: 83-523

Print Date: 1983

Scale: 1:250,000

Format: Folded

Media: Envelope contains 2-plates and 60-page text.