Slope County, North Dakota
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Slope County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 706, and was estimated to be 628 in 2025, making it the least populous county in North Dakota and
Former Slope County Courthouse in Amidon
White Butte in Slope County
US Highway 12 bridge over the Little Missouri River
Three V Crossing across the Little Missouri River
Marmarth, North Dakota
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Marmarth is the largest city in Slope County in the U.S. State of North Dakota with a population of 101 as of 2020 census. It is situated in the southwestern part of Slope County, along the Bowman Cou
Slope County, North Dakota
…the least populous county in North Dakota and the 18th-least populous county in the United States. The county seat is Amidon and the largest city is Marmarth. The vote to create Slope County, by partitioning the lower portion of Billings, was held on November 3, 1914. This was the final (as of 2019) alteration…
U.S. Route 12 in Marmarth, 2007.
The Harrison House in Marmarth, 1915.
Homesteader Michael Zeis arrives at Marmarth in 1913.
Homesteader hunting by the Little Missouri River, where Theodore Roosevelt killed his first buffalo a few years prior.