Umunhum and El Sombroso (CA)

Santa Clara County, California, United States

31.1 miles (50.0 km) · 5,741 ft elevation gain · Loop · trail · Route

Umunhum and El Sombroso (CA) covers 31.1 miles across Santa Clara County, California, United States. Runners face 5,741 feet of climbing with 5,715 feet of loss. The largest climb extends 7.9 miles, gaining 1,788 feet. The course averages 186 feet of vertical gain per mile. The course is 59% runnable, with the remainder requiring hiking on steep or technical sections. Trail comprises the majority of the course. Terrain difficulty is rated as very hilly. Difficulty is rated 14.2 out of 10, placing it in the 76.88th percentile. Popular among trail runners and hikers seeking California adventures.