What was the original name of the county where Mike Horse, Montana is located?
Mike Horse, Montana Mike Horse is an extinct town in Lewis and Clark County, Montana.
Beaverhead County, Montana Beaverhead County is the largest county by area in the U.S. state of Montana. As of the 2010 census, the population was 9,246. Its county seat is Dillon. The county was founded in 1865.