Slumgullion Pass
CO 149Lake City to Creede · Colorado
Distance15.4mi · 25 km
Drive time32 minon the road
DifficultyModerate
MountainForestValley
Steep San Juan climb on the Silver Thread Byway
CO 149, the Silver Thread Byway, climbs from Lake City over Slumgullion Pass at 11,530 feet to Spring Creek Pass. The north side is one of the steepest continuously paved grades in Colorado at nearly ten percent, with tight turns through San Juan forest and meadows. Mind the high altitude, sharp grades, and winter storms.
Where it runs
Lake CityStart · Colorado
CreedeEnd · United States
Character
Corners30bends
Tightness6of 10
Max gradient10%≈ 1-in-10
Hairpins0tight bends
Climb874 mtotal ascent
Summit3521 mhighest point · 11552 ft
SummerAutumn
Elevation
877 m rangeKnow before you go
- High altitude over 11,000 feet
- Steep sustained grades
- Winter snow and ice
Along the road
- viewpoint Windy Point Observation Site
Sources
Nearby roads
The closest great drives to Slumgullion Pass.
