Green Canyon is a valley located in Fall River County, South Dakota. It appears on the Angostura Reservoir USGS 7.5-minute topographic quadrangle. The nearest populated place is Angostura, approximately 3.9 miles to the E.
Fall River County · South Dakota
Green Canyon is a valley located in Fall River County, South Dakota. It appears on the Angostura Reservoir USGS 7.5-minute topographic quadrangle. The nearest populated place is Angostura, approximately 3.9 miles to the E.