Valley County is a county in the U.S. state of Montana. Valley County was created in 1893 with area partitioned from Dawson County. As of the 2020 census, the population was 7,578. Its county seat is Glasgow. It is located on the Canada–United States border with Saskatchewan.
Valley County Courthouse in Glasgow
Valley County Census Districts, colored, 2010 U.S. Census
Dawson County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 8,940. Its county seat is Glendive.
Dawson County Courthouse in Glendive
1913 postcard of Glendive