Letterbox Canyon is a valley located in San Diego County, California. It appears on the San Luis Rey USGS 7.5-minute topographic quadrangle. The nearest populated place is Ocean Hills, approximately 2.2 miles to the NE.
San Diego County · California
Letterbox Canyon is a valley located in San Diego County, California. It appears on the San Luis Rey USGS 7.5-minute topographic quadrangle. The nearest populated place is Ocean Hills, approximately 2.2 miles to the NE.