Thumb Rock is a pillar located in Siskiyou County, California. It appears on the Mount Shasta USGS 7.5-minute topographic quadrangle. The nearest populated place is Howard, approximately 6.9 miles to the SSW.
Siskiyou County · California
Thumb Rock is a pillar located in Siskiyou County, California. It appears on the Mount Shasta USGS 7.5-minute topographic quadrangle. The nearest populated place is Howard, approximately 6.9 miles to the SSW.