178 official trails lie within 25 miles of Riverside — 493 miles in total, 101 rated easy and 32 hard or expert. Every distance and elevation figure below is computed from the agency centerline and a 10 m elevation model, not crowd-sourced.
The biggest climb nearby gains 5,344 ft; the median trail gains 429 ft.
| Trail | Miles | Climb | Difficulty | From town |
|---|---|---|---|---|
| Joplin | 10.9 | 3,554 ft | Expert | 18 mi |
| Los Pinos | 8.1 | 3,515 ft | Expert | 24 mi |
| Santa Ana River Trail | 38.2 | 5,344 ft | Expert | 21 mi |
| Harding Truck Trail | 9.2 | 3,097 ft | Expert | 18 mi |
| San Juan | 7.7 | 2,569 ft | Expert | 24 mi |
| Sitton Peak Trail | 9.2 | 2,439 ft | Expert | 24 mi |
| Bell Ridge | 5.9 | 2,713 ft | Expert | 21 mi |
| Indian Truck Trail | 7.0 | 2,522 ft | Expert | 17 mi |
| Cucamonga Pk- Icehouse Saddle | 7.0 | 2,322 ft | Expert | 24 mi |
| Lower Lytle Creek Divide | 8.4 | 1,769 ft | Expert | 22 mi |
| Smashmouth Trail | 4.6 | 2,702 ft | Expert | 16 mi |
| Cold Water Canyon | 4.0 | 2,885 ft | Hard | 17 mi |
| Old San Juan Trail | 6.3 | 2,190 ft | Hard | 24 mi |
| Middlefork - Wilderness | 3.6 | 2,936 ft | Hard | 24 mi |
| Trabuco Canyon | 4.5 | 2,225 ft | Hard | 19 mi |
| Cloudland Truck Trail | 6.5 | 1,953 ft | Hard | 18 mi |
| Holy Jim | 4.4 | 2,141 ft | Hard | 19 mi |
| Trail | 2.4 | 2,748 ft | Hard | 21 mi |
| Horsethief East | 3.5 | 2,362 ft | Hard | 17 mi |
| 2N33 | 7.2 | 1,544 ft | Hard | 25 mi |
| Chiquito | 6.1 | 1,313 ft | Hard | 22 mi |
| Chapman Trail | 3.5 | 1,538 ft | Hard | 24 mi |
| South Ridge Trail | 6.8 | 1,000 ft | Hard | 18 mi |
| Skinsuit Trail | 2.5 | 2,174 ft | Hard | 16 mi |
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