Challis, Idaho - Wikipedia, the free encyclopediaChallis is a city in Custer County, Idaho, United States. The population was 909 at the 2000 census. The city is the county seat of Custer County...
Challis, Idaho Travel Guide and DirectoryChallis, Idaho Travel Guide and Directory. ... Challis, a community of 1,200 people, lies in one of the richest mineral belts in North America, and was ...