2023 Map of Copper Basin Knob

About this map

Challis National Forest land defines this high-elevation landscape where the White Knob Mountains meet the Pioneer Mountains. The map centers on the glacial and alluvial terrain of the Copper Basin, featuring the wide, flat expanse of Copper Basin Flat and the meandering headwaters of the East Fork Big Lost River. Small-scale aviation infrastructure is present at the Copper Basin Airport, serving this remote interior of Custer County. Evidence of the region's geologic and industrial history is preserved in names like Smelter Canyon and Mine Canyon, while high-altitude travel is facilitated by routes through Antelope Pass. The drainage network is dense, including Charcoal Creek, Steve Creek, and a significant riparian area known as The Swamps, illustrating the complex hydrology of these Idaho highlands.