McIntyre, D. H.

About the author

Geologic Map of the Challis 1°x2° Quadrangle, Idaho

The paper version of The geology of the Challis 1°x2° quadrangle, was compiled by Fred Fisher, Dave McIntyre and Kate Johnson in 1992. The geology was compiled on a 1:250,000 scale topographic base map. TechniGraphic System, Inc. of Fort Collins Color