Mt. Umunhum Trail Conquest - Winter

San Jose, United States • 7 Feb 2026

The Mt. Umunhum Trail Conquest - Winter is a trail running event held at Almaden Quicksilver County Park in San Jose, California. The race offers multiple distances including a 50K, marathon, 30K, half marathon, 7-mile, 5K, mile, and a kids run.

The longer courses traverse the scenic Sierra Azul Open Space Preserve, with the 30K summiting Bald Mountain and the marathon and 50K routes ascending Mt. Umunhum. The event features marked trails, aid stations, and commemorative medals for finishers.

Facilities such as toilets are available at the start/finish area. Registration and bib pick-up occur on race day, with detailed course maps accessible online. Visit the organization's website for the most recent information.

Race information

50 km
50k
26 mi
Marathon
30 km
30k
13 mi
1/2 Marathon
7 mi
7 Miler
5 km
Mile
Kids Run
Visit the organization's website for the most recent information.
Trail runs nearby

The Rock the Loch Half Marathon is a scenic trail running event held at Lake Chabot Regional Park in Castro Valley, California. Scheduled for late June 2025, it offers live and virtual participation options across three distances: 5K, 10K, and half marathon. The 5K is fully paved, ideal for beginner..

The Rancho Hills Trail Run - Summer is a challenging trail running event held in the scenic Rancho Cañada del Oro Open Space Preserve near Morgan Hill, California. The race offers multiple distances including 50K, trail marathon, 30K, half marathon, 10-mile, 8-mile, 10K, and 5K, catering to a wide r..

The San Lorenzo River Trail Run, held in Santa Cruz, California, offers a scenic trail running experience through towering 1500-year-old Coastal Redwoods, stream canyons, meadows, and diverse forest landscapes. The event features multiple race distances including 10K, Half Marathon, 30K, Marathon, 5..

The Calero Hills Trail Fest is a trail running event held at Calero County Park in San Jose, California. It offers a variety of race distances including a marathon, 30K, half marathon, 10-mile, 10K, and 5K. The courses feature challenging ascents and descents through scenic old oak groves, single tr..

The Skyline 50K Endurance Run, held annually in August at Lake Chabot Marina in Castro Valley, California, is the longest-running 50K race in the state and one of the oldest in the U.S. The course features a large loop through the scenic East Bay Regional Parks, reaching Skyline Gate. Known for its..

UTMB Index

The Mount Madonna Challenge, held in Gilroy, California, is a historic trail running event featuring a half marathon, 10K, and 5K races. Known for its challenging elevation gains—2,828 feet for the half marathon, 1,532 feet for the 10K, and 843 feet for the 5K—the race courses offer a rigorous test..