Sourdough Ridge is a ridge located in Asotin County, Washington. It appears on the Pinkham Butte USGS 7.5-minute topographic quadrangle. The nearest populated place is Peola, approximately 6.5 miles to the NW.
Asotin County · Washington
Sourdough Ridge is a ridge located in Asotin County, Washington. It appears on the Pinkham Butte USGS 7.5-minute topographic quadrangle. The nearest populated place is Peola, approximately 6.5 miles to the NW.