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.
Mason County, Washington Mason County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 60,699. The county seat and only incorporated city is Shelton. The county was formed out of King County on March 13, 1854. Originally named Sawamish County, it took its present name in 1864 in honor of Charles H. Mason, the first Secretary of Washington Territory.