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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.

United States California San Jose

Race information

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