Challis is the largest city in Custer County, Idaho, United States. It is the county seat and its population was 1,081 at the 2010 census. The 2020 census shows 902 residents, a 16.6% drop.
Main Street in Challis, May 2007
Custer County is a rural mountain county in the center of the U.S. state of Idaho. As of the 2020 census, the population was 4,275, making it the fifth-least populous county in Idaho. The county seat is Challis. Established in 1881, the county was named for the General Custer Mine, where gold was discovered five years earlier. Custer County relies on ranching, mining, and tourism as its main resources.
Mill used to process gold and silver ore at Yankee Fork mining operations.
Leatherman Peak, 12,228 feet (3,727 m), second highest in Idaho, in the Lost River Range in eastern Custer County
Grand View Canyon (US-93) between Mackay and Challis
Grand View Canyon (US-93)