Mount Umunhum is the fourth-highest peak in California's Santa Cruz Mountains. The mountain is situated in Santa Clara County, south of San Jose. It is sometimes referred to as Mount Um by locals. Most of the mountain is within the Sierra Azul Open Space Preserve.
Mt. Umunhum consists of a geologic formation that is known as the Coast Range Ophiolite. This ophiolite is a piece of Middle Jurassic oceanic crust and mantle that has been obducted onto land and largely been converted to serpentinite. It has been extensively faulted and diapirically uplifted and eroded to form Mt.
Wikipedia https://en.wikipedia.org/wiki/Mount_Umunhum
Address Mount Umunhum Rd, 95033, United States
Coordinates 37°9'37.593" N -121°53'55.907" E
