The High Lonesome 100 is a high-flying Colorado mountain race transecting the southern end of the expansive Sawatch Range. Starting and ending at the base of Mount Princeton, the loop course takes runners along soaring ridges, through idyllic meadows and remote basins, across 5 alpine passes, and through two ghost towns. Runners will be treated to 27 miles of the National Scenic Continental Divide Trail and 35 miles of the classic Colorado Trail. This course is wild, tough, and relentless, but with each aid station captained by a 100-mile race veteran, we'll give you the push you need to succeed.
| Name | Distance | Gain From Start | Loss From Start | Elevation | Latitude | Longitude | |
|---|---|---|---|---|---|---|---|
| Start | Mile 0.0 | 0 feet | 0 feet | 8,533 feet | 38.742335 | -106.158566 | |
| Raspberry 1 | Mile 7.3 | 1,365 feet | 1,017 feet | 8,925 feet | 38.689437 | -106.170932 | |
| Antero | Mile 16.9 | 5,772 feet | 2,612 feet | 11,716 feet | 38.670165 | -106.264271 | |
| St Elmo 1 | Mile 25.1 | 6,720 feet | 5,172 feet | 10,105 feet | 38.705457 | -106.349952 | |
| Cottonwood | Mile 31.3 | 9,000 feet | 7,293 feet | 10,262 feet | 38.764482 | -106.336617 | |
| St Elmo 2 | Mile 37.5 | 11,121 feet | 9,573 feet | 10,105 feet | 38.705457 | -106.349952 | |
| Tin Cup | Mile 41.2 | 12,118 feet | 9,596 feet | 11,082 feet | 38.692365 | -106.414126 | |
| Hancock | Mile 49.3 | 13,732 feet | 11,237 feet | 11,053 feet | 38.639371 | -106.361989 | |
| Lost Wonder | Mile 55.7 | 15,134 feet | 12,793 feet | 10,896 feet | 38.571897 | -106.329349 | |
| Purgatory | Mile 65.1 | 17,856 feet | 14,738 feet | 11,670 feet | 38.517071 | -106.344785 | |
| Monarch Pass | Mile 68.7 | 18,414 feet | 15,713 feet | 11,312 feet | 38.496477 | -106.325285 | |
| Fooses Creek | Mile 75.7 | 19,037 feet | 18,620 feet | 8,952 feet | 38.539831 | -106.24994 | |
| Shavano | Mile 82.2 | 20,351 feet | 19,709 feet | 9,183 feet | 38.584764 | -106.220823 | |
| Blanks Cabin | Mile 84.1 | 21,084 feet | 19,880 feet | 9,826 feet | 38.596034 | -106.199813 | |
| Raspberry 2 | Mile 93.7 | 22,492 feet | 22,137 feet | 8,925 feet | 38.689437 | -106.170932 | |
| Finish | Mile 101.0 | 23,509 feet | 23,509 feet | 8,533 feet | 38.742335 | -106.158566 |