Hackberry Mountain is a mountain summit on the south of Lanfair Valley in eastern San Bernardino County, California. Its summit is 5390 feet / 1,643 meters at 35°03′04″N 115°13′24″W / 35.05111°N 115.22333°W.
Coordinates: 35°03′04″N 115°13′22″W / 35.05111°N 115.22278°W