Upper South Boulder Creek


USB is a short class V wilderness run near Boulder infamous for its ability to destroy boaters.  For some local hair boaters, this is their backyard training run.  For others, it's a run they contemplate stepping up to from the comfort of their living room in the off season, only to be forgotten about while spending the spring running Clear Creek.  For most boaters, it's one they gawk at in the guide book on their way to run Brown's Canyon.

Suggested river levels for paddling this section of the South Boulder Creek are between a bare minimum of 250cfs and a high of 800cfs. River conditions sourced from USGS 06730200, the Boulder Cr At North 75th St Nr Boulder Remember only watercraft are permitted at Upper South Boulder Creek.

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Area Hydrology

Gauge Streamflow Stage
South Fork Of Williams Fork Near Leal
USGS 09035900
20 cfs 2.5 ft
Cottonwood Creek At Mouth
USGS 07103990
4 cfs 2.7 ft
North Fork Cache La Poudre R. At Livermore
USGS 06751490
7 cfs 7.0 ft
West Fork Clear Creek Abv Mouth Nr Empire
USGS 06716100
47 cfs 4.6 ft
St. Louis Creek Near Fraser
USGS 09026500
13 cfs 1.4 ft
Monument Cr Abv Woodmen Rd At Colorado Springs
USGS 07103970
7 cfs 4.1 ft
South Platte River At Fort Lupton
USGS 06721000
213 cfs 3.2 ft
Cache La Poudre R A Mo Of Cn
USGS 06752000
267 cfs 3.5 ft
First Cr Bel Buckley Rd
USGS 06720460
1 cfs 1.6 ft
Joe Wright Creek Above Joe Wright Reservoir
USGS 06746095
8 cfs 4.4 ft
Snotel Site Snowpack 24hr Change

Outdoor Recreation

Campground Campsites Reservations Toilets Showers Elevation
Marys Lake - USBR 270 8,032 ft
Camp Dick 41 8,716 ft
Longs Peak - Rocky Mountain National Park 26 9,397 ft
Peaceful Valley 17 8,552 ft
Meeker Park Overflow 29 8,611 ft
Kelly Dahl 46 8,615 ft
Reverends Ridge - Golden Gate State Park 106 9,105 ft
Rainbow Lakes 16 9,961 ft
Olive Ridge 56 8,361 ft
Pawnee 55 10,354 ft
Aspen Meadow - Golden Gate Canyon State Park 35 9,000 ft
Meridian 18 9,013 ft
Deer Creek 13 9,092 ft
Cold Springs 38 9,331 ft
Hermit Park Open Space None 8,313 ft
Ski Area Snowpack Air Temperature 5 Day Forecast
Echo Mountain Park 18" 63° 0"
Ski Estes Park (Hidden Valley) 42" 67° 0"
Eldora Mountain Resort 24" 67° 0"
River Run Streamflow Length Class
NSV 37.8cfs 13.0 Mi V+
Upper Clear Creek 60.7cfs 2.5 Mi IV- to IV+
SSV - Confluence to Picnic Grounds 37.8cfs 5.0 Mi V to V+
Main Section 55.3cfs 3.0 Mi IV+ to V
Upper Narrows 182.0cfs 0.5 Mi V- to V+
Lower Boulder Canyon 42.0cfs None Mi IV- to V-
Filter Plant 3.92cfs None Mi II to III+
Rustic (Upper) 182.0cfs 20.0 Mi III to III+
Middle Narrows 182.0cfs 1.0 Mi IV to V-
Tunnel 1 to Golden Whitewater Park 60.7cfs None Mi III- to III+
Filter Plant 3.92cfs None Mi II to III+
Steven's Gulch to Bridges Take Out 182.0cfs 12.0 Mi III- to IV+
October Hole 37.8cfs None Mi II
Upper South Boulder Creek 5.0cfs None Mi V+
Lower Narrows 182.0cfs 0.5 Mi V- to V+
Upper South Boulder Creek 5.0cfs None Mi V+
Idledale to Morrison 11.2cfs 3.0 Mi IV+ to V
Golden Whitewater Park 3.92cfs 0.75 Mi II+
Gnar Section 405.0cfs 1.0 Mi V+