Slope County was formed in 1915.  It was originally part of Billings County.  Billings County was divided to form three other counties; Bowman, Slope, and Golden Valley.  You may want to check records in these other counties especially if you are looking for records prior to 1915.  Bowman was split off and became the south west corner of North Dakota.  Later Golden Valley and Slope were created out of the remaining Billings County area.   

County Population: 767
County Houses: 451
Land area: 1217.9 sq. mi.
Water area: 1.3 sq. mi.
 

Industries providing employment: Agriculture,forestry,fishing and hunting, and mining (56.4%).

Type of workers:

Median age: 42.5 years
Males: 53.8%, Females: 46.2%
Average household size in Slope County: 2.45
Median household income: $24,667 (year 2000)
Median house value: $23,900 (year 2000)
Median montly rent in 2000: $325
 

Cities in this county include: Marmarth, Amidon.

Notable locations in this county outside city limits:

Cemeteries: Cedar Cemetery, Saint Paul Cemetery, DeSart Cemetery, Riverside Cemetery, Peaceful Valley Cemetery, Pierce Cemetery, Lebanon Cemetery.

Streams, rivers, and creeks: Johny Creek, South Cedar Creek, Butte Creek, First Creek, North Cedar Creek, Bacon Creek, Cottonwood Creek, Cannonball Creek, Spring Coulee.