Horsethief Canyon
Horsethief Canyon, is a canyon, the upper part of Summit Valley in San Bernardino County, California. Its mouth is at an elevation of 3,123 feet / 952 meters. Its head lies at 34°19′33″N 117°25′38″W / 34.32583°N 117.42722°W at an elevation of 3,800 feet just east of the summit of Cajon Pass.
Coordinates: 34°19′23″N 117°18′31″W / 34.32306°N 117.30861°W
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