Sioux County, North Dakota
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Sioux County is a county located along the southern border of the U.S. state of North Dakota. As of the 2020 census, the population was 3,898, and was estimated to be 3,667 in 2025. Its eastern border
Postcard. Historic Sioux County Courthouse at Fort Yates, North Dakota.
Grant County, North Dakota
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Grant County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 2,301. The county seat is Carson and the largest city is Elgin.
Carson Roller Mill
Heart Butte is a prominent geographic feature in Grant County, and the namesake for the nearby Heart Butte Dam.