Richland County is a county in the U.S. state of Montana. As of the 2020 census, the population was 11,491. Its county seat is Sidney.
Richland County Courthouse in Sidney
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