First Black Canyon is a valley located in Custer County, South Dakota. It appears on the Smithwick NE USGS 7.5-minute topographic quadrangle. The nearest populated place is Oral, approximately 12.1 miles to the WSW.
Custer County · South Dakota
First Black Canyon is a valley located in Custer County, South Dakota. It appears on the Smithwick NE USGS 7.5-minute topographic quadrangle. The nearest populated place is Oral, approximately 12.1 miles to the WSW.