Santa Ana Mountains, California Hiking Trails 1. Adobe Loop Trail Riverside County 2. Bluewater Truck Trail Riverside County 3. Chiquito Trail Orange County 4. Clark Trail Riverside County 5. Clark Trail San Diego County 6. East Horsetheif Trail Riverside County 7. Falcon Trail Orange County 8. Harding Truck Trail Orange County 9. Hamilton Truck Trail Orange County 10. Horsethief Trail Orange County 11. Holy Jim Trail Orange County This trail seems amazing, but almost like it would... 12. Indian Potrero Truck Trail San Diego County 13. Joplin Truck Trail Orange County 14. Joplin Trail Orange County 15. Los Pinas Trail Orange County 16. Los Alamos Truck Trail Riverside County 17. Maple Spring Truck Trail Orange County 18. Morrow Trail Orange County 19. Main Divide Truck Trail Orange County 20. Silverado Truck Trail Orange County 21. Santiago Truck Trail Orange County 22. Santiago Truck Trail Orange County 23. Sitton Peak Truck Trail Riverside County 24. San Juan Trail Orange County 25. San Mateo Trail Riverside County 26. San Mateo Truck Trail Riverside County 27. Santa Rosa Ranch Trail Riverside County 28. Trabuco Canyon Trail Orange County 29. Tenaja Truck Trail Riverside County 30. Viejo Tie Trail Orange County 31. Verdugo Truck Trail Riverside County 32. West Horsethief Trail Orange County