Normally a barren canyon, in June of 2017 a heavy snowpack remains at the upper end of this canyon which is just north of Onion Valley. At the 10,000' level of the canyon is a shaft dug to reach the Rex Montis mine which is at the 12,000' level on Kersarge Peak high above Onion Valley. This road and shaft were built in the 1960s. The original mine was developed 100 years earlier. More information can be found here. |