View of Big Chico Creek, Bidwell Park

The North rim trail entrance – Bidwell Park loop from North Valley Pillsbury Road Butte College Bus Transfer offers a rugged mountain biking experience through Upper Bidwell Park. You'll navigate consistently rocky terrain, often called "lava cap," as the trail winds through a unique landscape shaped by ancient volcanic formations. Keep an eye out for expansive views of Chico, the Sutter Buttes, and the dramatic Big Chico Creek Canyon, especially as you climb the hillside singletrack sections.

This moderate 23.4-mile (37.7 km) route, with 562 feet (171 metres) of elevation gain, typically takes around 2 hours and 42 minutes. While direct parking is available at spots like Lot B, you can also access the park via public transport; B-Line buses offer bike storage, connecting areas like Butte College to various trailheads. Be ready for a physically demanding ride due to the rocky surface, making it ideal for intermediate to advanced riders.

Upper Bidwell Park is renowned for its mountain biking, hosting events and offering well-maintained trails. The North Rim Trail serves as a primary climbing route to access even more technical downhill options, like the challenging B Trail. The park's distinctive geology, including the 3 million-year-old Tuscan Formation, adds a unique natural history element to your ride.

The South Rim Trail – Annie Bidwell Trail loop offers a demanding mountain biking experience, featuring extremely rocky and technical singletrack with significant drop-offs. You'll navigate relentless uphill and downhill sections, especially on the Annie Bidwell Trail, while enjoying panoramic views of the Big Chico Creek Canyon. The Guardian Trail section provides exciting cliff-side scenery, and in spring, the meadows near Bear Hole burst with wildflowers, adding to the visual appeal of this challenging 15.6-mile (25.2 km) route.

This moderate loop, with 1070 feet (326 metres) of elevation gain and an estimated duration of 2 hours and 2 minutes, is best suited for advanced riders. Access points include the Green Gate entrance on Hwy 32 or beyond the Five-Mile Recreation Area within Upper Bidwell Park. Be mindful that the Annie Bidwell Trail is shared with hikers and runners, and the park's rugged, steep terrain requires good physical conditioning.

Part of Upper Bidwell Park, this trail system is known for its varied and challenging landscape, shaped by Chico Formation sandstone and Lovejoy Basalt rocks. It's a favorite among experienced local mountain bikers seeking technical thrills. The park's extensive network of trails provides a surprisingly remote feel despite its city park status, making it a unique destination for mountain biking in Chico, California.