Clark Mountain is a summit in a county with a 2010 population of what?
Clark Mountain (Maine) Clark Mountain is a summit in Androscoggin County, Maine, in the United States. With an elevation of 682 ft , Clark Mountain is the 1434 highest summit in the state of Maine.
Columbia County, Washington Columbia County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 4,078, making it the third-least populous county in Washington. The county seat and largest city is Dayton. The county was created out of Walla Walla County on November 11, 1875 and is named after the Columbia River.