Mt. Umunhum Trail Conquest - Winter

San Jose, United States • 7 Feb 2026

Mt. Umunhum Trail Conquest - Winter

This trail event is held at the Hacienda Entrance of Almaden Quicksilver County Park in San Jose, California. Multiple distances are offered on marked trails that run through local park land and the Sierra Azul Open Space Preserve.

Distances include:

  • 50K
  • Trail Marathon
  • 30K
  • 1/2 Marathon
  • 7 Miler
  • 5K
  • Mile
  • Kids Run

The 30K route reaches the summit of Bald Mountain. The Trail Marathon and 50K routes travel to Mt. Umunhum. Courses are marked with ribbons, signs and gypsum, and aid stations are available along the routes. Toilets are provided at the start and finish area on a first come first served basis. Bib pick up and registration take place on race day, and race day registration is available. All finishers receive a commemorative medal. Course maps and detailed descriptions are provided for each distance.

Event location and parking are listed as Almaden Quicksilver County Park, Hacienda Entrance, 21785 Almaden Road, San Jose, CA 95120. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Trail Marathon
30 km
30k
13 mi
Half Marathon
7 mi
7 Miler
5 km
Mile
Kids Run
Visit the organization's website for the most recent information.
Trail runs nearby

Run through the Skyline Ridge Open Space Preserve on a scenic course featuring coastal views and gentle hills. All proceeds and matched entry fees support medical aid programs via The Hatuey Project.

Run a flat and fast course on the historic Western Pacific Trail in Fremont. Choose from a half marathon, 10K, or 5K starting at Quarry Lakes. The event is open to runners and walkers of all levels.

Experience a scenic trail run around Lake Chabot and the surrounding hills of Castro Valley. With distances from a 50 yard dash to a 50K ultramarathon there is an event for everyone at this regional park.

Run the scenic trails at Lake Del Valle Regional Park in Livermore. The Badger Cove event offers a Half Marathon, 10K, and 5K on April 18, 2026, with walkers and hikers welcome. The half marathon is part of a challenging trail series.