Sierra Azul Trail Challenge
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Sierra Azul Trail Challenge
The Sierra Azul Trail Challenge takes place Saturday, April 3, 2027 at the Almaden Quicksilver County Park Hacienda Entrance in San Jose, California. Set in the Sierra Azul Open Space Preserve near Mt. Umunhum, the event uses natural trails and offers access to parts of the preserve not often open to the public. All courses are out and back and are marked primarily with solid color pink ribbons; some turnarounds use additional ribbon colors.
Distances and course ascent:
- 5K - Course ascent 974 ft.
- 7 Mile - Course ascent 1,663 ft.
- Half Marathon - Course ascent 3,582 ft.
- 20 Mile - Course ascent 5,547 ft.
- Trail Marathon - Course ascent 7,332 ft.
- 50K - Course ascent 8,802 ft.
Aid stations and facilities are provided along the courses with toilets available at the Hacienda start/finish and Woods Aid Station. Drop bag service is available for the 20 Mile, Trail Marathon, and 50K at Hacienda, Kennedy Aid Station, and Priest Rock Aid Station. Some races have time limits and cutoffs that will be enforced.
Entry fees range from $55 to $115 for pre-entry with higher on-site rates; fees do not include processing charges and are non-refundable, though transfers or credits may be permitted before race day. Active military and first responders receive a 15% discount. Event registration includes an option to purchase gender-specific technical shirts in sizes from ladies XS through mens XXL and youth S-XL. The organizer partners with a travel provider for optional travel packages. Visit the organization's website for the most recent information.
