human
What are some recommendations for best mountain biking spots in California?
assistant
Here are some of the best mountain biking spots in California: 
1. Santa Cruz Mountains 
2. Mammoth Mountain 
3. Lake Tahoe 
4. Los Olivos Trail 
5. Chabot Trail 
6. Laguna Mountain 
7. Pacifica State Beach 
8. Malibu Creek State Park 
9. Annadel State Park 
10. Limekiln State Park.