Marthas Island (historical) is a island located in Gregory County, South Dakota. It appears on the Lake Andes SW USGS 7.5-minute topographic quadrangle. The nearest populated place is Wheeler (historical), approximately 5.9 miles to the WNW.
Gregory County · South Dakota
Marthas Island (historical) is a island located in Gregory County, South Dakota. It appears on the Lake Andes SW USGS 7.5-minute topographic quadrangle. The nearest populated place is Wheeler (historical), approximately 5.9 miles to the WNW.