313 official trails lie within 25 miles of Castle Rock — 904 miles in total, 229 rated easy and 23 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 2,100 ft; the median trail gains 173 ft.
| Trail | Miles | Climb | Difficulty | From town |
|---|---|---|---|---|
| Colorado Trail Segment 2 | 11.1 | 1,740 ft | Expert | 17 mi |
| Long Hollow Trail | 9.8 | 1,534 ft | Expert | 15 mi |
| Turtle Mountain Trail | 39.2 | 1,424 ft | Expert | 17 mi |
| Indian Creek Trail | 10.0 | 1,618 ft | Expert | 13 mi |
| North Fork Trail | 9.7 | 1,457 ft | Expert | 17 mi |
| Colorado Trail Segment 1 | 9.1 | 1,655 ft | Expert | 17 mi |
| Log Jumper Trail | 6.8 | 2,100 ft | Expert | 18 mi |
| Noddle Trail | 7.0 | 1,395 ft | Expert | 18 mi |
| Powerline Trail 690 | 7.3 | 907 ft | Hard | 13 mi |
| Monument Trail | 5.9 | 1,368 ft | Hard | 21 mi |
| Black Bear Trail | 5.9 | 1,164 ft | Hard | 19 mi |
| Little Scraggy Trail | 8.9 | 805 ft | Hard | 22 mi |
| FT 678 Ruby Creek Trail | 3.8 | 1,591 ft | Hard | 18 mi |
| Beginner Trail | 7.6 | 1,110 ft | Hard | 12 mi |
| East/West Regional Trail | 9.7 | 665 ft | Hard | 8 mi |
| Watson Park Trail | 5.5 | 776 ft | Hard | 14 mi |
| Cabin Ridge Trail | 4.6 | 896 ft | Hard | 15 mi |
| Centennial Trail | 6.9 | 717 ft | Hard | 24 mi |
| Barr Trail | 3.4 | 1,146 ft | Moderate | 13 mi |
| Gill Trail | 4.5 | 735 ft | Hard | 24 mi |
| Bergen Rock Trail | 6.5 | 450 ft | Hard | 14 mi |
| Russell Gulch Trail | 2.8 | 1,405 ft | Moderate | 15 mi |
| Unnamed trail | 7.5 | 431 ft | Hard | 13 mi |
| C-470 Trail | 8.9 | 436 ft | Hard | 24 mi |
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