Grotto Hills is a range of hills in the Lanfair Valley of San Bernardino County, California. Its tallest summit is at 4,892 feet / 1,491 meters.
Map of Grotto Hills, California 92364, USA
References
Grotto Hills Wikipedia(Text) CC BY-SA
Grotto Hills is a range of hills in the Lanfair Valley of San Bernardino County, California. Its tallest summit is at 4,892 feet / 1,491 meters.