 | This article needs additional citations for verification. (February 2011) |
| Slumgullion Pass | |
|---|---|
 The summit of Slumgullion Pass, looking west. | |
| Elevation | 11,530 ft (3,514 m)[1] |
| Traversed by |  SH 149 |
| Location | Hinsdale County, Colorado |
| Range | San Juan Mountains |
| Coordinates | 37°59′08″N 107°13′20″W / 37.98556°N 107.22222°W[1] |
| Topo map | USGS Slumgullion Pass |
  Colorado | |
Slumgullion Pass (elevation 11,530 ft (3,514 m)) is a mountain pass in southwestern Colorado traversed by State Highway 149 east of Lake City. The north side has the steepest grade of any continuously paved road in Colorado (9%),[2] but the pass does not close often in winter because snowplows clear the route regularly during this season. It has a few switchbacks and tight spots, but other than that, most travelers will find it an easy, scenic route.
Technically speaking, the current highway does not traverse the true Slumgullion Pass, which lies just off the highway on the ridge between Cebolla Creek and the Lake Fork of the Gunnison River, at an elevation of about 11,300 ft (3,400 m).[3] As a result of a realignment several decades ago (evident by comparing USGS topographic maps of different vintages), the road now takes a shorter but somewhat higher route as it travels east and south from this spot toward Spring Creek Pass. The road sign at the high point refers to Slumgullion Summit rather than Slumgullion Pass in order to reflect this. This is analogous to the usage of the terms Donner Summit and Cajon Summit in California. However, in all three cases, the more familiar but slightly inaccurate name is routinely used.
- ^ a b "Slumgullion Pass". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2011-02-05.
- ^ McKee, Spencer (2017-04-21). "The 10 Steepest Mountain Passes in Colorado". OutThere Colorado.
1. Slumgullion Pass – 9.4% grade at 11,361 feet.
- ^ "Slumgullion Pass, Colorado, USGS 7.5 minute topographic map via TopoQuest". USGS. Retrieved 2013-07-15.