Silverton, CO
The most demanding 100-miler in North America. 102.5 miles through the San Juan Mountains averaging 11,000 feet — clockwise 2026. Built from official GPX, aid station, and course data.
| Name | Mile | Elevation | Crew Access | Drop Bag | Cutoff |
|---|---|---|---|---|---|
| Start — Silverton | 0 | 9,308 ft | Yes | Yes | Fri 6:00 AM |
| KT | 11.5 | 10,628 ft | No | No | Fri 12:45 PM |
| Chapman Gulch | 18.1 | 10,158 ft | No | Yes | Fri 4:00 PM |
| Telluride | 27.8 | 8,748 ft | Yes | Yes | Fri 8:00 PM |
| Kroger's Canteen | 32.7 | 13,098 ft | No | No | — |
| Governor Basin | 36.3 | 10,673 ft | No | No | — |
| Ouray | 43.9 | 7,678 ft | Yes | Yes | Sat 3:15 AM |
| Engineer | 51.9 | 11,798 ft | No | No | — |
| Animas Forks | 57.9 | 11,003 ft | Yes | Yes | Sat 10:30 AM |
| Burrows Park | 68.5 | 10,588 ft | No | No | — |
| Sherman | 72.7 | 9,638 ft | Yes | Yes | Sat 4:00 PM |
| Pole Creek | 82.1 | 11,244 ft | No | No | — |
| Maggie Gulch | 87.1 | 11,838 ft | No | No | — |
| Cunningham | 93.2 | 10,378 ft | Yes | Yes | Sun 2:00 AM |
| Segment | Miles | Terrain | Difficulty | Notes |
|---|---|---|---|---|
| Start → KT | 0–11.5 | climb | hard | Big opening climb; altitude shock; no crew at KT |
| KT → Chapman | 11.5–18.1 | mixed | hard | Crew at Chapman hike-in from Ophir only; drop bags |
| Chapman → Telluride | 18.1–27.8 | descent | extreme | Virginius Pass; technical; 4,500 ft descent into town |
| Telluride → Kroger's | 27.8–32.7 | climb | extreme | Hardest climb per mile; 13,098 ft summit; no crew |
| Kroger's → Governor | 32.7–36.3 | descent | hard | Oscar's Pass; exposed ridge; afternoon lightning risk |
| Governor → Ouray | 36.3–43.9 | descent | hard | Bear Creek Trail; cliff exposure; low point 7,678 ft |
| Ouray → Engineer | 43.9–51.9 | climb | extreme | Biggest single climb; 4,575 ft in 8 mi; no crew |
| Engineer → Animas Forks | 51.9–57.9 | descent | moderate | Descent to crew; 4WD required at Animas Forks |
| Animas Forks → Burrows | 57.9–68.5 | mixed | extreme | Handies Peak 14,058 ft; longest gap; no crew at Burrows |
| Burrows → Sherman | 68.5–72.7 | descent | moderate | Descent to crew; Sherman cut-off Sat 4:00 PM |
| Sherman → Pole Creek | 72.7–82.1 | climb | hard | No crew; most runners hit this at night |
| Pole Creek → Maggie | 82.1–87.1 | mixed | hard | Pacer exchange at Maggie; 4WD access only |
| Maggie → Cunningham | 87.1–93.2 | mixed | hard | Crew at Cunningham; cut-off Sun 2:00 AM |
| Cunningham → Finish | 93.2–102.5 | mixed | extreme | Final climb 2,770 ft; 6 hrs Cunningham to finish |
View the full interactive elevation profile, 3D course flyover, and race strategy tools on HARDN.