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
Buckhorn Creek Near Masonville
USGS 06739500
9 cfs 6.6 ft
Colorado River At Windy Gap
USGS 09034250
251 cfs 4.1 ft
Joe Wright Creek Below Joe Wright Reservoir
USGS 06746110
15 cfs 1.1 ft
South Fork Of Williams Fork Near Leal
USGS 09035900
67 cfs 2.8 ft
Bobtail Creek Near Jones Pass
USGS 09034900
11 cfs 3.2 ft
Fountain Creek At Cascade
USGS 07100300
3 cfs 3.7 ft
Leavenworth Creek @ Mouth Nr Georgetown
USGS 06714800
20 cfs 3.9 ft
Big Dry Creek At Westminster
USGS 06720820
3 cfs 1.5 ft
Bear Creek At Morrison
USGS 06710500
44 cfs 6.3 ft
Fraser River Blw Crooked Cr At Tabernash Co
USGS 09033300
138 cfs 3.6 ft
Snotel Site Snowpack 24hr Change

Outdoor Recreation

Campground Campsites Reservations Toilets Showers Elevation
Kelly Dahl 46 8,615 ft
Rainbow Lakes 16 9,961 ft
Meeker Park Overflow 29 8,611 ft
Olive Ridge 56 8,361 ft
Peaceful Valley 17 8,552 ft
Cold Springs 38 9,331 ft
Deer Creek 13 9,092 ft
Pawnee 55 10,354 ft
Aspen Meadow - Golden Gate Canyon State Park 35 9,000 ft
Longs Peak - Rocky Mountain National Park 26 9,397 ft
Meridian 18 9,013 ft
Hermit Park Open Space None 8,313 ft
Marys Lake - USBR 270 8,032 ft
Reverends Ridge - Golden Gate State Park 106 9,105 ft
Camp Dick 41 8,716 ft
Ski Area Snowpack Air Temperature 5 Day Forecast
Ski Estes Park (Hidden Valley) 42" 69° 0"
Echo Mountain Park 18" 66° 0"
Eldora Mountain Resort 24" 70° 0"
River Run Streamflow Length Class
Steven's Gulch to Bridges Take Out 182.0cfs 12.0 Mi III- to IV+
NSV 37.8cfs 13.0 Mi V+
Gnar Section 405.0cfs 1.0 Mi V+
Idledale to Morrison 11.2cfs 3.0 Mi IV+ to 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 South Boulder Creek 5.0cfs None Mi V+
Upper South Boulder Creek 5.0cfs None Mi V+
Middle Narrows 182.0cfs 1.0 Mi IV to V-
Rustic (Upper) 182.0cfs 20.0 Mi III to III+
Lower Narrows 182.0cfs 0.5 Mi V- to V+
Filter Plant 3.92cfs None Mi II to III+
Lower Boulder Canyon 42.0cfs None Mi IV- to V-
Filter Plant 3.92cfs None Mi II to III+
Upper Narrows 182.0cfs 0.5 Mi V- to V+
Tunnel 1 to Golden Whitewater Park 60.7cfs None Mi III- to III+
October Hole 37.8cfs None Mi II
Golden Whitewater Park 3.92cfs 0.75 Mi II+