Boulder Slips
Boulder Slips in Colorado has 22 climbing routes across 14 grades, featuring mixed, sport, and trad styles.
- 22 routes
- 5.6 – 5.14a
- Mixed · Sport · Trad
Is Boulder Slips open right now?
Alert in the area
The Forest Service lists 3 alerts for Arapaho and Roosevelt National Forests.
Fire Restrictions
Agency alert covering Arapaho and Roosevelt National Forests · USFS · Arapaho and Roosevelt National Forests
Caribou Road Closure Order
Agency alert covering Boulder Ranger District · Order 02-10-01-26-04 · USFS · Boulder Ranger District
Raptor Nesting Area Closure - Boulder Ranger District
Agency alert covering Boulder Ranger District · Order 02-10-01-26-06 · USFS · Boulder Ranger District
As of · Source: USFS · Arapaho and Roosevelt National Forests. Agencies don't list every closure — check before you go.
Best time to visit Boulder Slips
Best months: May–September. 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
39° / 17°
5 wet
Feb
40° / 17°
5 wet
Mar
47° / 22°
6 wet
Apr
52° / 27°
8 wet
May
61° / 35°
10 wet
Jun
73° / 44°
9 wet
Jul
79° / 50°
10 wet
Aug
77° / 48°
11 wet
Sep
70° / 41°
8 wet
Oct
57° / 31°
6 wet
Nov
47° / 24°
5 wet
Dec
40° / 17°
5 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Gross Rsvr, CO, 5.6 mi away at 7,970 ft. The station sits about 1,100 ft higher than this place, so expect it a little warmer here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Boulder Slips is a climbing area on city land in the Boulder Falls - American Millsite area, within the Boulder Ranger District of the Arapaho and Roosevelt National Forests in Colorado. Its location puts it close to the Boulder Falls area, and it sits alongside the Garden and Creekside climbing areas, both about 0.1 mile away. Summer is the most comfortable time to visit. Typical averages from a nearby weather station show July highs around 79°F with lows near 50°F, while winter highs stay in the low to mid 40s with lows in the teens. Several other spots are close by. The Hawkins Surguine Spur Trail is about 1.3 miles away, and the Hawkins Surguine Spur mountain bike route is about 1.7 miles away. For an overnight stay, Winiger Ridge campground is about 4.2 miles off, and Gordon Gulch campground is about 5.1 miles away.
Routes (22)
Keep exploring — more climbs worth the drive
Photo: Jim Halligan, CC BY 2.0 (via Flickr)Lion's Den
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Lion's Den in Colorado has 5 routes ranging across 3 difficulty grades, offering mixed, sport, and trad climbing.
Creekside
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Creekside in Colorado has 6 routes across 6 grades, offering mixed and trad climbing.
The Garden
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The Garden in Colorado has 10 climbing routes with 7 difficulty grades, offering mixed, sport, and trad styles.
Treasure Wall
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Treasure Wall in Colorado has 8 routes with 7 difficulty grades, offering mixed, sport, and trad climbing.
Sport Land
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Sport Land in Colorado has 13 climbing routes across 12 grades, offering sport and trad options.
Boulder Falls East
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Boulder Falls East in Colorado has 6 routes with sport and trad options.
Freedom Boulder
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Freedom Boulder in Colorado has 5 bouldering routes spanning 5 difficulty grades.
Nickel Dome
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5 mixed and sport routes at Nickel Dome, Colorado, covering 3 difficulty grades.
Lower Dream Canyon
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Lower Dream Canyon in Colorado has 13 climbing routes with bouldering pads, mixed, sport, and trad styles.
Vanishing Point
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Vanishing Point in Colorado has 11 routes across 10 grades, offering mixed, sport, and trad climbing.
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