Grotto Hills
Grotto Hills is a summit in the Lanfair Valley of San [Bernardino County, California]. Its tallest peak is at. It is in the east-central part of Mojave [National Preserve], 7 miles north of Hackberry Mountain.
Grotto Hills is a summit in the Lanfair Valley of San [Bernardino County, California]. Its tallest peak is at. It is in the east-central part of Mojave [National Preserve], 7 miles north of Hackberry Mountain.