Mt. Umunhum Marathon

San Jose, United States • 20 Sep 2025

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

Umunhum, one of the prominent peaks in the South Bay Area. Runners then descend back to the starting point, experiencing the scenic beauty of the park and surrounding hills. The race offers a unique adventure through natural terrain, combining elevation gain with stunning vistas.

It is a full marathon distance and provides race day registration and bib pickup. Visit the organization's website for the most recent information.

Race information

42 km
Marathon
Visit the organization's website for the most recent information.
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