Boulder Rock Club
Rock Climbing business nearby (~9 mi away) — hasn't claimed their Roamze page yet
Colorado · Rock climbing · Boulder
Safety in Numbers
Mid-range climb among 23 routes at Lost Rock, Colorado.
- 5.10
- grade
- Trad Gear
- style
Is Safety in Numbers 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 Safety in Numbers
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, 5.5 mi away at 7,970 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
One of 23 routes catalogued at Lost Rock, this climb sits in the middle of the crag's range from 5.7 to 5.12-.
Keep exploring — more climbs worth the drive
Photo: Jim Halligan, CC BY 2.0 (via Flickr)West Gully
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West Gully in Colorado has 5 climbing routes with sport and trad options.
Photo: Jim Halligan, CC BY 2.0 (via Flickr)Solaris
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Main Wall
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Easter Rock
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Middle Animal World
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Vampire Rock
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Local businesses nearby
Outfitters and businesses near Boulder. They haven’t set up their Roamze page yet.
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Movement Gyms
Rock Climbing business nearby (~9 mi away) — hasn't claimed their Roamze page yet
Wildcat Mountaineering
Rock Climbing business nearby (~18 mi away) — hasn't claimed their Roamze page yet
