Mt. Umunhum Marathon

San Jose, United States • 20 Sep 2025

The Mt. Umunhum Marathon, Race to the Top and Down, is a challenging trail marathon held in Almaden Quicksilver County Park, San Jose, California. The race begins at the Hacienda Entrance and ascends to the summit of Mt.

Umunhum, offering runners a demanding climb followed by a thrilling descent back to the start. Participants experience the rugged beauty of the South Bay Area hills and the scenic landscapes of Quicksilver State Park. This event provides a unique opportunity to tackle one of the Bay Area's iconic peaks on foot, combining natural splendor with a rigorous trail running challenge. Visit the organization's website for the most recent information.

Race information

26 mi
Marathon
Visit the organization's website for the most recent information.
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