The most northern NorCal race is on for 2012:
Classic mountain bike race returns to the State of Jefferson’s Greenhorn Park in Yreka. SINGLE TRACK! SINGLE TRACK! The “Monster Mile.” The “Chute.” The “Hike-a Bike.” Challenging expert course ~ 24 miles. Fun sport course ~ 15 miles. Friendly beginner course ~ 7 miles. Free kids race ~ 1 mile. Free overnight camping in Greenhorn Park. Cash prizes and goodies. Sponsored by Yreka Rotary and the Siskiyou Family YMCA.
More details at http://www.humbughurryup.com/.