Upper Boulder Lake is a lake located in Siskiyou County, California. It appears on the Billys Peak USGS 7.5-minute topographic quadrangle. The nearest populated place is Callahan, approximately 5.9 miles to the N.
Siskiyou County · California
Upper Boulder Lake is a lake located in Siskiyou County, California. It appears on the Billys Peak USGS 7.5-minute topographic quadrangle. The nearest populated place is Callahan, approximately 5.9 miles to the N.