Clark County is a rural county in the U.S. state of Idaho; its county seat and largest city is Dubois. As of the 2020 census, the population was 790, making it the least populous county in the state.

The Battle of Camas Creek, August 20, 1877, was a raid by the Nez Perce people on a United States Army encampment in Idaho Territory and a subsequent battle during the Nez Perce War. The Nez Perce defeated three companies of U.S. cavalry and continued their fighting retreat to escape the army.