| Horse Lake Gap | Rio Arriba, NM | 14 miles | SE |
| Middle Gap | Rio Arriba, NM | 15.7 miles | SE |
| Gunsight Pass | Archuleta, CO | 17.7 miles | NE |
| Tecolote Gap | Rio Arriba, NM | 19 miles | SE |
| Cat Creek Gap | Archuleta, CO | 19.3 miles | NW |
| Cumbres Pass | Conejos, CO | 21.8 miles | SE |
| La Manga Pass | Conejos, CO | 25.4 miles | NE |
| Windy Pass | Mineral, CO | 26.8 miles | NW |
| Stunner Pass | Conejos, CO | 27.4 miles | NE |
| Windy Pass | Archuleta, CO | 27.5 miles | NW |
| Elwood Pass | Rio Grande, CO | 27.7 miles | NE |
| Summit Pass | Rio Grande, CO | 28.2 miles | NE |
| Bonito Pass | Rio Grande, CO | 29 miles | NE |
| Railroad Pass | Mineral, CO | 29.8 miles | NE |
| Wolf Creek Pass | Mineral, CO | 30.8 miles | NE |
| Puerto Blanco | Mineral, CO | 34.2 miles | NW |
| The Notch | Hinsdale, CO | 35.3 miles | NW |
| Puerto Chiquito | Rio Arriba, NM | 35.4 miles | SE |
| Yellowjacket Pass | Archuleta, CO | 36.7 miles | NW |
| Blowout Pass | Rio Grande, CO | 36.7 miles | NE |
| Meadow Pass | Rio Grande, CO | 37.8 miles | NE |
| Piedra Pass | Mineral, CO | 37.8 miles | NW |
| Squaw Pass | Hinsdale, CO | 44 miles | NW |
| The Notch | Hinsdale, CO | 44 miles | NW |
| Smith Pass | Rio Arriba, NM | 44 miles | SW |
| Dunham Gap | La Plata, CO | 44.7 miles | NW |
| Durant Gap | La Plata, CO | 45.4 miles | NW |
| Wagon Wheel Gap | Mineral, CO | 50.8 miles | NE |
| Weminuche Pass | Hinsdale, CO | 51.5 miles | NW |
| Gould Pass | Rio Arriba, NM | 52.5 miles | SW |
| Puertecito de las Ranas | Rio Arriba, NM | 52.6 miles | SE |
| Santa Maria Pass | Mineral, CO | 52.7 miles | NW |
| The Window | Hinsdale, CO | 53 miles | NW |
| Trimble Pass | La Plata, CO | 55.9 miles | NW |
| Silver Pass | Mineral, CO | 56.6 miles | NW |
| Hollis Pass | San Juan, NM | 56.6 miles | SW |
| Columbine Pass | La Plata, CO | 57 miles | NW |
| Trouble Hill | Hinsdale, CO | 58 miles | NW |
| Sotano Saddle | Rio Arriba, NM | 58.2 miles | SE |
| Milk Cow Pass | Saguache, CO | 58.4 miles | NE |
| Hunchback Pass | San Juan, CO | 59.2 miles | NW |
| Halfmoon Pass | Saguache, CO | 59.7 miles | NE |
| El Puertecito | Rio Arriba, NM | 60.2 miles | SE |
| Treasure Pass | Mineral, CO | 60.7 miles | NW |
| Hellgate | Saguache, CO | 63.2 miles | NE |
| East Gap | La Plata, CO | 63.2 miles | NW |
| West Gap | La Plata, CO | 63.5 miles | NW |
| Spring Creek Pass | Hinsdale, CO | 64.7 miles | NW |
| San Luis Pass | Saguache, CO | 64.8 miles | NW |
| Stony Pass | San Juan, CO | 65.1 miles | NW |
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