Which  county located in the U.S. state of Montana is Brockton  a town in
Roosevelt County, Montana Roosevelt County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 10,425. Its county seat is Wolf Point. Roosevelt County was created by the Montana Legislature in 1919 from Sheridan County. The name honors former president Theodore Roosevelt, who had died shortly before the county was formed.
Williams County, North Dakota Williams County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 22,398. Its county seat is Williston. Between 2010 and 2016, according to Census Bureau estimates, it was the second-fastest growing county in the United States, trailing only neighboring McKenzie County, to its south.