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
Bear Creek Above Evergreen
USGS 06710385
15 cfs 4.3 ft
Laramie River Near Glendevey
USGS 06657500
34 cfs 0.9 ft
Big Dry Creek Blw C-470 At Highlands Ranch
USGS 06710150
6 cfs 2.0 ft
Little Dry Creek At Westminster
USGS 06719840
1 cfs 7.3 ft
N Frk Cache La Poudre R Blw Halligan Res Nr V Dal
USGS 06751150
84 cfs 2.8 ft
Boulder Creek At Mouth
USGS 06730500
51 cfs 9.8 ft
Big Thompson River At Loveland
USGS 06741510
9 cfs 0.7 ft
West Fork Clear Creek Abv Mouth Nr Empire
USGS 06716100
17 cfs 4.3 ft
Fraser River Blw Crooked Cr At Tabernash Co
USGS 09033300
48 cfs 2.8 ft
Michigan River Near Cameron Pass
USGS 06614800
0 cfs 2.4 ft
Snotel Site Snowpack 24hr Change
lafayette 0.4 wsw, co
SNOTEL CO-BO-8
1.24" 0"
aurora south
SNOTEL EAGC2
0.86" 0"
wheat ridge 2.8 wsw, co
SNOTEL CO-JF-290
0.34" 0"
woodland park 1.1 nnw, co
SNOTEL CO-TL-28
0.11" 0.05"
fort collins 4.9 n, co
SNOTEL CO-LR-1020
2.44" 2.13"
grant
SNOTEL GRTC2
7.58" 2.98"
loveland 3.0 nne, co
SNOTEL CO-LR-104
2.07" 1.51"
fcl 2.55 ne, co
SNOTEL CO-LR-340
2.76" 2.36"
lafayette 2.3 nw, co
SNOTEL CO-BO-290
1.34" 0"
monument 3s
SNOTEL DMDC2
0.81" 0"
fcl 3.0 w, co
SNOTEL CO-LR-284
3.84" 3.18"
buford 4se
SNOTEL BFDW4
2.6" 2.07"
Bear Lake
SNOTEL 322
57" 8"
carr 0.6 s, co
SNOTEL CO-WE-127
1.58" 0"
littleton 6.4 w, co
SNOTEL CO-JF-212
1.44" 1.19"
red feather 5.9 ne, co
SNOTEL CO-LR-329
5.57" 3.71"
rollinsville 1.7 e, co
SNOTEL CO-GL-25
3.69" 2.36"
amrad
SNOTEL CNRC2
5.56" 3.34"
Berthoud Summit
SNOTEL 335
59" 6"
fort collins 4.6 n, co
SNOTEL CO-LR-762
2.53" 2.2"
fort collins 0.9 n, co
SNOTEL CO-LR-849
3.15" 2.71"
boulder 2.0 w, co
SNOTEL CO-BO-380
1.43" 1.13"
tabernash 2.7 nw, co
SNOTEL CO-GR-68
0.36" 0"
jamestown 2.5 sse, co
SNOTEL CO-BO-343
6.12" 3.61"
broomfield 2.3 ssw, co
SNOTEL CO-JF-72
1.3" 0"
co st forest st park
SNOTEL CSFC2
2.29" 2.25"
bailey
SNOTEL BLYC2
3.18" 1.1"
Hayden Pass
SNOTEL 1102
33" -3"
allens park 1.5 ese, co
SNOTEL CO-BO-22
12.21" 7.12"
monument 2.1 ene, co
SNOTEL CO-EP-17
1.21" 0"
Phantom Valley
SNOTEL 688
20" 3"
boulder 4.7 e, co
SNOTEL CO-BO-67
0.64" 0"
cheesman
SNOTEL CHEC2
1.02" 0"
nederland 4.2 e, co
SNOTEL CO-BO-233
4.68" 2.68"
fairplay 2.7 wnw, co
SNOTEL CO-PK-15
26.53" 1.43"
berthoud
SNOTEL ERTC2
1.63" 1.33"
lafayette 2.5 nw, co
SNOTEL CO-BO-222
0.4" 0"
laramie 7sse
SNOTEL CMBW4
0.93" 0.33"
longmont 5.1 e, co
SNOTEL CO-WE-302
0.24" 0"
erie 1.7 wnw, co
SNOTEL CO-BO-455
0.72" 0"
berthoud 4.4 wsw, co
SNOTEL CO-LR-922
3.24" 2.91"
fort collins 1.1 wnw, co
SNOTEL CO-LR-863
3.51" 2.97"
ralston reservoir
SNOTEL GDNC2
2.39" 2.25"
ward 4.6 ne, co
SNOTEL CO-BO-202
11.48" 6.42"
Crow Creek
SNOTEL 1045
12" 0"
Rawah
SNOTEL 1032
23" 6"
estes park 1.8 sse, co
SNOTEL CO-LR-987
6.43" 3.25"
niwot 0.7 nnw, co
SNOTEL CO-BO-338
0.55" 0"
laramie 1se
SNOTEL ADFW4
0.79" 0.21"
estes park 1.7 w, co
SNOTEL CO-LR-1115
6.41" 2.99"
Jones Pass
SNOTEL 970
39" 6"
nederland 2.61 nne, co
SNOTEL CO-BO-75
6.13" 3.25"
longmont 3.0 sw, co
SNOTEL CO-BO-435
0.48" 0"
cabin creek
SNOTEL GCRC2
20.91" 4.1"
nederland 5.8 e, co
SNOTEL CO-BO-57
4.54" 2.66"
parker 3.5 wnw, co
SNOTEL CO-DG-292
1.18" 0"
littleton 6.0 w, co
SNOTEL CO-JF-376
0.26" 0.13"
fort lupton 7.4 nw, co
SNOTEL CO-WE-326
0.11" 0"
evergreen 1.3 nne, co
SNOTEL CO-JF-424
3.68" 2.84"
lyons 0.3 nne, co
SNOTEL CO-BO-146
4.7" 4.13"
longmont 1.8 e, co
SNOTEL CO-BO-361
0.34" 0"
black forest 6wnw
SNOTEL BKFC2
1" 0"
highlands ranch 1.1 ene, co
SNOTEL CO-DG-165
1.96" 0"
virginia dale 7.2 ssw, co
SNOTEL CO-LR-672
4.86" 3.73"
niwot 2.3 w, co
SNOTEL CO-BO-248
0.67" 0"
wellington 0.8 sw, co
SNOTEL CO-LR-1008
1.71" 0"
broomfield 3.2 nne, co
SNOTEL CO-BR-32
0.69" 0"
lakewood 1.7 sw, co
SNOTEL CO-JF-333
0.47" 0"
glen haven 1.2 n, co
SNOTEL CO-LR-868
5.65" 2.58"
fcl 5.6 e, co
SNOTEL CO-LR-393
2.6" 0"
boulder 2.1 w, co
SNOTEL CO-BO-437
1.53" 1.22"
livermore 9.9 wsw, co
SNOTEL CO-LR-897
5.22" 3.74"
firestone
SNOTEL FSNC2
0.14" 0"
westminster 2.3 sse, co
SNOTEL CO-AD-225
1.17" 0"
loveland 2.8 wnw, co
SNOTEL CO-LR-1109
4.93" 4.16"
fcl 1.7 sw, co
SNOTEL CO-LR-320
3.97" 3.34"
boulder 1.6 s, co
SNOTEL CO-BO-14
1.07" 0.99"
boulder 1.8 w, co
SNOTEL CO-BO-491
1.53" 1.22"
windsor 3.0 sse, co
SNOTEL CO-WE-507
1.01" 0"
evergreen 4.2 sse, co
SNOTEL CO-JF-157
4.54" 3.17"
lakewood 2.2 ese, co
SNOTEL CO-JF-179
1.41" 0"
fort collins
SNOTEL FORC2
3.19" 2.72"
fcl 3.0 sw, co
SNOTEL CO-LR-391
4.4" 3.7"
erie 1.5 nne, co
SNOTEL CO-WE-511
0.16" 0"
wellington 0.4 nw, co
SNOTEL CO-LR-952
1.7" 0"
parker 2.1 wnw, co
SNOTEL CO-DG-146
0.82" 0"
denver 8 ssw, co
SNOTEL CO-DN-30
0.99" 0"
estes park 3.3 ssw, co
SNOTEL CO-LR-247
7.49" 3.73"
lafayette 0.8 wsw, co
SNOTEL CO-BO-266
1.35" 0"
estes park 10.5 se, co
SNOTEL CO-LR-1019
9.48" 6.28"
boulder 2.2 nw, co
SNOTEL CO-BO-452
2.23" 1.87"
fort collins 9.6 se, co
SNOTEL CO-LR-630
1.66" 0"
castle rock 1.7 ssw, co
SNOTEL CO-DG-62
0.91" 0.89"
fcl 1.7 se, co
SNOTEL CO-LR-295
3.4" 2.91"
fort collins 3.9 nne, co
SNOTEL CO-LR-112
2.32" 0"
boulder 4.7 ene, co
SNOTEL CO-BO-220
0.55" 0"
fcl 2.2 nw, co
SNOTEL CO-LR-273
3.22" 2.7"
arvada 4.7 w, co
SNOTEL CO-JF-455
0.5" 0"
gleneagle 0.4 wnw, co
SNOTEL CO-EP-61
1.02" 0"
Hoosier Pass
SNOTEL 531
46" 1"
nederland 4.8 ene, co
SNOTEL CO-BO-110
4.98" 2.77"
florissant 5.0 n, co
SNOTEL CO-TL-19
0.62" 0.09"
highlands ranch 0.6 sse, co
SNOTEL CO-DG-176
2.03" 0"
longmont 2.1 n, co
SNOTEL CO-BO-143
0.49" 0"
longmont 3.3 sw, co
SNOTEL CO-BO-507
0.51" 0"
fort collins 1.2 nne, co
SNOTEL CO-LR-1137
3.02" 2.59"
longmont 1.8 ene, co
SNOTEL CO-BO-352
0.38" 0"
evergreen 5 w, co
SNOTEL CO-CC-2
5.48" 3.83"
evergreen 6.5 wsw, co
SNOTEL CO-CC-1
6.02" 4.06"
fcl 7.9 ene, co
SNOTEL CO-WE-250
2.59" 0"
estes park 1.8 s, co
SNOTEL CO-LR-767
6.5" 3.31"
loveland 2.3 nw, co
SNOTEL CO-LR-854
4.56" 3.82"
fort collins 2.8 wsw, co
SNOTEL CO-LR-75
4.19" 3.52"
lake george 7.2 wnw, co
SNOTEL CO-PK-39
1.35" 0.15"
fort collins 4.2 s, co
SNOTEL CO-LR-758
1.94" 0"
greeley 4.6 wnw, co
SNOTEL CO-WE-318
0.65" 0"
evergreen 3.4 wnw, co
SNOTEL CO-CC-22
5.47" 3.88"
evergreen
SNOTEL EVGC2
3.45" 2.63"
evergreen 2.0 ese, co
SNOTEL CO-JF-395
3.84" 2.77"
Hourglass Lake
SNOTEL 1122
41" 6"
westminster 1.6 ne, co
SNOTEL CO-AD-153
1" 0"
lyons 4.8 n, co
SNOTEL CO-LR-50
6.67" 5.46"
arvada 3.5 wnw, co
SNOTEL CO-JF-457
0.53" 0"
fort collins 5.4 wsw, co
SNOTEL CO-LR-623
5.32" 4.46"
nederland 0.4 wnw, co
SNOTEL CO-BO-322
5.74" 3.27"
loveland 2.4 nw, co
SNOTEL CO-LR-676
4.56" 3.82"
loveland 2.7 e, co
SNOTEL CO-LR-687
1.79" 0"
fort collins 3.4 n, co
SNOTEL CO-LR-653
2.76" 2.36"
fort collins 2.8 w, co
SNOTEL CO-LR-1009
3.93" 3.29"
thornton 2.1 n, co
SNOTEL CO-AD-100
0.26" 0"
boulder 2.9 s, co
SNOTEL CO-BO-4
0.96" 0"
Sawtooth
SNOTEL 1251
63" 4"
Never Summer
SNOTEL 1031
49" 7"
nederland 3.7 ene, co
SNOTEL CO-BO-296
5.43" 2.94"
conifer 5.7 sw, co
SNOTEL CO-JF-222
3.78" 1.72"
aspen springs amrad
SNOTEL ASIC2
3.7" 2.65"
Jackwhacker Gulch
SNOTEL 935
39" 3"
loveland 1.5 n, co
SNOTEL CO-LR-40
3.95" 3.31"
cripple creek,co
SNOTEL CRIC2
0.07" 0"
Michigan Creek
SNOTEL 937
36" 0"
fort collins 5.5 s, co
SNOTEL CO-LR-1100
3.84" 3.27"
Loveland Basin
SNOTEL 602
60" 5"
bellvue 5.9 w, co
SNOTEL CO-LR-4
5.28" 3.53"
cheyenne wfo
SNOTEL CYSW4
1.95" 1.65"
laporte 1.4 nw, co
SNOTEL CO-LR-761
2.93" 2.46"
highlands ranch 3.2 ese, co
SNOTEL CO-DG-74
2.17" 0"
la porte 10.0 nnw, co
SNOTEL CO-LR-567
3.42" 3.18"
fcl 2.3 nw, co
SNOTEL CO-LR-311
3.29" 2.75"
windsor 3.8 wsw, co
SNOTEL CO-LR-845
1.73" 0"
englewood #2
SNOTEL ENLC2
0.54" 0"
erie 1.7 wnw, co
SNOTEL CO-BO-285
0.64" 0"
Copeland Lake
SNOTEL 412
10" 4"
boulder 1.5 wnw, co
SNOTEL CO-BO-490
1.41" 1.17"
gross reservoir
SNOTEL GRRC2
2.96" 2.16"
lov 3.4 s, co
SNOTEL CO-LR-472
2.65" 2.06"
estes park,co
SNOTEL ETSC2
5.8" 2.92"
georgetown
SNOTEL GEOC2
4.14" 2.84"
highlands ranch 2.5 ssw, co
SNOTEL CO-DG-178
1.9" 0"
Wild Basin
SNOTEL 1042
43" 0"
wellington 3.7 wnw, co
SNOTEL CO-LR-918
1.69" 0"
golden 12.5 nw, co
SNOTEL CO-JF-331
3.71" 2.56"
hygiene,co
SNOTEL HGIC2
0.66" 0"
denver 0.4 e, co
SNOTEL CO-DN-175
0.43" 0"
boulder 1.5 nnw, co
SNOTEL CO-BO-496
1.01" 0"
rollinsville 1.1 ssw, co
SNOTEL CO-GL-17
12.99" 2.67"
south platte river
SNOTEL ANTC2
2.42" -0.32"
erie 1.6 ne, co
SNOTEL CO-WE-209
0.14" 0"
longmont 8.2 ese, co
SNOTEL CO-WE-203
0.12" 0"
Willow Park
SNOTEL 870
58" 3"
conifer 3.2 sw, co
SNOTEL CO-JF-53
4.5" 2.5"
fort collins 3.7 s, co
SNOTEL CO-LR-885
3.81" 3.26"
boulder 1.9 se, co
SNOTEL CO-BO-30
0.7" 0"
denver 6.1 wsw, co
SNOTEL CO-JF-3
0.35" 0"
University Camp
SNOTEL 838
55" 4"

Outdoor Recreation

Campground Campsites Reservations Toilets Showers Elevation
Meridian 18 9,013 ft
Kelly Dahl 46 8,615 ft
Reverends Ridge - Golden Gate State Park 106 9,105 ft
Meeker Park Overflow 29 8,611 ft
Pawnee 55 10,354 ft
Olive Ridge 56 8,361 ft
Peaceful Valley 17 8,552 ft
Hermit Park Open Space None 8,313 ft
Longs Peak - Rocky Mountain National Park 26 9,397 ft
Camp Dick 41 8,716 ft
Cold Springs 38 9,331 ft
Rainbow Lakes 16 9,961 ft
Deer Creek 13 9,092 ft
Marys Lake - USBR 270 8,032 ft
Aspen Meadow - Golden Gate Canyon State Park 35 9,000 ft
Ski Area Snowpack Air Temperature 5 Day Forecast
Eldora Mountain Resort 26" 26° 14.44"
Echo Mountain Park 31" 22° 12.94"
Ski Estes Park (Hidden Valley) 57" 27° 14.19"
River Run Streamflow Length Class
Gnar Section 141.0cfs 1.0 Mi V+
SSV - Confluence to Picnic Grounds 55.4cfs 5.0 Mi V to V+
Golden Whitewater Park 1.66cfs 0.75 Mi II+
Middle Narrows 56.4cfs 1.0 Mi IV to V-
Steven's Gulch to Bridges Take Out 56.4cfs 12.0 Mi III- to IV+
Upper South Boulder Creek 11.0cfs None Mi V+
Lower Boulder Canyon 50.8cfs None Mi IV- to V-
Idledale to Morrison 23.7cfs 3.0 Mi IV+ to V
NSV 55.4cfs 13.0 Mi V+
Upper Narrows 56.4cfs 0.5 Mi V- to V+
Main Section 46.8cfs 3.0 Mi IV+ to V
Rustic (Upper) 56.4cfs 20.0 Mi III to III+
Filter Plant 1.66cfs None Mi II to III+
Filter Plant 1.66cfs None Mi II to III+
Tunnel 1 to Golden Whitewater Park 49.5cfs None Mi III- to III+
Lower Narrows 72.4cfs 0.5 Mi V- to V+
Upper Clear Creek 49.5cfs 2.5 Mi IV- to IV+
Upper South Boulder Creek 11.0cfs None Mi V+
October Hole 55.4cfs None Mi II