South Fork of St. Vrain Canyon
South Fork of St. Vrain Canyon in Colorado has 98 climbing routes.
- 98 routes
- 5.2 – 5.12b
- Trad · Sport · Mixed
Is South Fork of St. Vrain Canyon 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 South Fork of St. Vrain Canyon
Best months: April–June 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
47° / 21°
6 wet
Feb
48° / 22°
7 wet
Mar
57° / 29°
8 wet
Apr
63° / 34°
10 wet
May
71° / 43°
12 wet
Jun
83° / 51°
10 wet
Jul
88° / 57°
11 wet
Aug
86° / 55°
10 wet
Sep
79° / 48°
8 wet
Oct
66° / 37°
7 wet
Nov
54° / 28°
6 wet
Dec
46° / 21°
6 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boulder, CO, 14 mi away at 5,484 ft. The station sits about 900 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
South Fork of St. Vrain Canyon is a climbing area in the Boulder Ranger District of the Arapaho and Roosevelt National Forests in Colorado, managed by the Forest Service. It sits within a cluster of bouldering and cliff climbing spots, with two more named climbing areas, Fourth Band and Platitudes, about 0.1 mile away. For comfortable weather, aim for late spring or early fall. Typical averages from a nearby weather station in Boulder run highs around 71°F in May and 79°F in September, with the canyon running a little cooler than that station. July is the warmest month, with highs near 88°F. Close by, Coffintop is a hike about 0.2 mile away and Button Rock Trail is about 2.1 miles off. Paddlers can reach South Saint Vrain Creek and North Saint Vrain Creek, both about 5.8 miles away.
Routes (98)
Ant, The(1)
Atoll, The(4)
Backstage Wall(2)
Cache Dome(2)
Defibrillator Dome(2)
Field of Dreams(2)
Graveyard, The(3)
Guardian Rock(1)
Hobo Car, The(1)
Kids' Wall(1)
Mental Crux Boulder(1)
Mystery Rock(4)
Rhesus Monkey(3)
Roadeo(1)
Shortcrack Lump(1)
Stewardess Convention Crag(3)
Stray Dog(1)
Sundrop, The(3)
Terraphile(2)
Thinker, The(1)
Ticket Booth, The(2)
Vrain Trust, The(3)
Watchtower, The(4)
Wave Twister, The(2)
Whistler's Mother(4)
Keep exploring — more climbs worth the drive
Fourth Band
~0 min drive
Fourth Band in Colorado has 8 climbing routes across 7 grades, offering mixed, sport, and trad options.
The Platitudes
~0 min drive
Platitudes, The in Colorado has 5 trad climbing routes on 5 distinct difficulty grades.
Second Band
~0 min drive
Second Band in Colorado has 6 mixed climbing routes across 5 difficulty grades.
Mechanical Man
~0 min drive
Mechanical Man in Colorado has 10 routes across 5 grades, offering mixed, sport, and trad climbing.
Observatory Rock
~0 min drive
Observatory Rock in Colorado has 14 climbing routes across 12 grades in mixed, sport, and trad styles.
Log Boulder
~0 min drive
Log Boulder in Colorado has 6 bouldering routes across 5 grades.
Infirmary Slabs
~1 min drive
Infirmary Slabs in Colorado has 3 climbing routes with sport and trad options.
Arch of Titus
~1 min drive
Arch of Titus in Colorado offers 7 climbing routes with mixed and traditional styles.
The Acrophile
~1 min drive
Acrophile, Colorado climbing crag with 21 routes, 12 grades, mixed and trad.
North Narrows Slabs
~1 min drive
7 routes, 6 grades, mixed, sport, and trad climbing at North Narrows Slabs in Colorado.
