Inferno Slab
Inferno Slab in Colorado has 26 climbing routes across 15 difficulty grades.
- 26 routes
- 5.3 – 5.12
- Sport · Mixed
Is Inferno Slab open right now?
Alert in the area
The Forest Service lists 8 alerts for Pike and San Isabel National Forests.
FSR 286, Radical Hill, is closed due to washouts and unsafe conditions
Agency alert covering Pike and San Isabel National Forests · USFS · Pike and San Isabel National Forests
Interlaken Hotel Tree Hazards
Agency alert covering Pike and San Isabel National Forests · USFS · Pike and San Isabel National Forests
Sharpe Fire Update
Agency alert covering Pike and San Isabel National Forests · USFS · Pike and San Isabel National Forests
Turquoise Lake Road (County Road 4) Closure
Agency alert covering Pike and San Isabel National Forests · USFS · Pike and San Isabel National Forests
Downed and weakened trees on South Platte Ranger District
Agency alert covering South Platte Ranger District · USFS · South Platte Ranger District
As of · Source: USFS · Pike and San Isabel National Forests. Agencies don't list every closure — check before you go.
Best time to visit Inferno Slab
Best months: May–July and September–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
45° / 14°
4 wet
Feb
46° / 16°
5 wet
Mar
53° / 23°
6 wet
Apr
58° / 29°
8 wet
May
67° / 38°
9 wet
Jun
79° / 47°
9 wet
Jul
84° / 53°
12 wet
Aug
82° / 51°
13 wet
Sep
76° / 43°
7 wet
Oct
64° / 32°
5 wet
Nov
53° / 23°
4 wet
Dec
44° / 15°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Cheesman, CO, 2.4 mi away at 6,880 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Inferno Slab is a climbing area in the South Platte Ranger District of the Pike and San Isabel National Forests in Colorado, managed by the Forest Service. It sits among a cluster of climbing spots, with Big Cat Sanctuary and Whiskey Rocks both within a mile. Summer is the most comfortable time to visit. Typical averages from the nearby Cheesman weather station, which sits a few hundred feet lower, show July highs around 84°F with lows near 53°F, while September cools to highs in the mid-70s. Goose Creek Campground is about 3.4 miles away, and Lone Rock Campground is about 5.4 miles away. For time on the water, Goose Creek offers canoeing about 2.3 miles off, and the South Platte River is about 2.7 miles away.
Routes (26)
Keep exploring — more climbs worth the drive
The Big Cat Sanctuary
~1 min drive
Big Cat Sanctuary, The in Colorado has 6 mixed climbing routes across 6 difficulty grades.
Whiskey Rocks
~1 min drive
Whiskey Rocks in Colorado has 2 trad climbing routes with 2 distinct difficulty grades.
The Hollows
~2 min drive
Hollows, The in Colorado has 8 routes with 6 difficulty grades, offering mixed, sport, and trad climbing.
Goose Creek/Molly Gulch Campground
~2 min drive
Goose Creek/Molly Gulch Campground in Colorado has 21 climbing routes with 13 difficulty grades.
Sheeprock
~3 min drive
Sheeprock in Colorado has 4 climbing routes on rock.
Lower Smoking Section
~3 min drive
Lower Smoking Section in Colorado has 10 routes with 6 difficulty grades, offering mixed, sport, and trad climbing.
Upper Smoking Section
~3 min drive
Upper Smoking Section in Colorado has 7 routes across 5 grades, offering sport and trad climbing.
Acid Rock
~3 min drive
Acid Rock in Colorado has 6 routes with 6 difficulty grades, offering mixed, sport, and trad climbing.
Helen's Dome
~3 min drive
Helen's Dome in Colorado has 26 climbing routes with mixed, sport, and trad styles.
Couch Potatoes
~3 min drive
Couch Potatoes in Colorado has 5 trad routes across 4 difficulty grades.
