Gnar Section


This is a one mile section upstream from the town of Drake.  It contains class V and V+ rapids.

Suggested river levels for paddling this section of the Big Thompson are between a bare minimum of 200cfs and a high of 700cfs. River conditions sourced from USGS 06707500, the South Platte River At South Platte Remember only watercraft are permitted at Gnar Section.

Disclaimer: Snoflo assumes no responsibility for errors or omissions in any of the content found here. You, the user assumes the entire risk associated with use of this data and content. terms of service

Area Hydrology

Gauge Streamflow Stage
Colorado River Below Lake Granby
USGS 09019000
20 cfs 3.2 ft
West Fork Clear Creek Abv Mouth Nr Empire
USGS 06716100
14 cfs 4.2 ft
Grand Lake Outlet Blw Chipmunk Ln At Grand Lk
USGS 09014050
7 cfs 8.3 ft
South Platte River Below Union Ave
USGS 06710247
26 cfs 10.9 ft
Ranch Creek Near Fraser
USGS 09032000
5 cfs 4.6 ft
Fraser River Blw Crooked Cr At Tabernash Co
USGS 09033300
101 cfs 3.6 ft
N Frk Cache La Poudre R Blw Halligan Res Nr V Dal
USGS 06751150
15 cfs 2.0 ft
Plum Creek At Titan Rd Nr Louviers
USGS 06709530
2 cfs 7.6 ft
South Platte River At Henderson
USGS 06720500
186 cfs 3.4 ft
Fraser River At Upper Sta
USGS 09022000
5 cfs 0.6 ft
Snotel Site Snowpack 24hr Change
ward 4.6 ne, co
SNOTEL CO-BO-202
0.93" -0.42"
High Lonesome
SNOTEL 1187
6" 0"
Never Summer
SNOTEL 1031
7" 0"
Rawah
SNOTEL 1032
8" -1"
tabernash 2.7 nw, co
SNOTEL CO-GR-68
1.05" -0.3"
laramie 1se
SNOTEL ADFW4
1.77" -0.53"
cabin creek
SNOTEL GCRC2
1.69" -0.01"
Bear Lake
SNOTEL 322
3" 0"
Sawtooth
SNOTEL 1251
5" 0"
dillon 2.3 se, co
SNOTEL CO-SU-16
2.78" 1.32"
rollinsville 1.7 e, co
SNOTEL CO-GL-25
0.06" -0.29"
Lake Irene
SNOTEL 565
7" -1"
University Camp
SNOTEL 838
3" 0"
Lake Eldora
SNOTEL 564
4" 1"
Echo Lake
SNOTEL 936
2" 0"
Long Draw Resv
SNOTEL 1123
6" -176"
Willow Park
SNOTEL 870
4" -2"
Deadman Hill
SNOTEL 438
3" 0"
woodland park 1.1 nnw, co
SNOTEL CO-TL-28
0.49" -0.12"
Grizzly Peak
SNOTEL 505
7" 1"
monument 2.1 ene, co
SNOTEL CO-EP-17
0.37" -0.34"
co st forest st park
SNOTEL CSFC2
4.01" -0.47"
georgetown
SNOTEL GEOC2
0.47" -0.24"
cripple creek,co
SNOTEL CRIC2
0.09" 0.03"
Windy Peak
SNOTEL 872
4" 0"
rollinsville 1.1 ssw, co
SNOTEL CO-GL-17
1.02" -0.36"
divide 4nw
SNOTEL DNWC2
0.11" -0.35"
Jones Pass
SNOTEL 970
2" -6"
Hourglass Lake
SNOTEL 1122
3" -181"
nederland 4.8 ene, co
SNOTEL CO-BO-110
0.35" -0.38"
Berthoud Summit
SNOTEL 335
6" 1"
buford 4se
SNOTEL BFDW4
1.24" -0.72"
Wild Basin
SNOTEL 1042
3" 0"
Phantom Valley
SNOTEL 688
2" 0"
Crow Creek
SNOTEL 1045
3" 1"
Black Mountain
SNOTEL 1161
4" 1"
Loveland Basin
SNOTEL 602
10" -1"
red feather 5.9 ne, co
SNOTEL CO-LR-329
0.63" -0.7"
laramie 7sse
SNOTEL CMBW4
2.02" -0.56"
aspen springs amrad
SNOTEL ASIC2
0.24" -0.43"
Jackwhacker Gulch
SNOTEL 935
5" 0"

Outdoor Recreation

Campground Campsites Reservations Toilets Showers Elevation
Olive Ridge 56 8,361 ft
Narrows 5 6,470 ft
Lower Narrows 8 6,470 ft
Hermit Park Open Space None 8,313 ft
Stove Prairie 9 6,068 ft
Ansel Watrous 16 5,839 ft
Meadow Park None 5,349 ft
Camp Dick 41 8,716 ft
Pinewood Reservoir 22 6,604 ft
Mountain Park 54 6,678 ft
Peaceful Valley 17 8,552 ft
Kelly Dahl 46 8,615 ft
Dutch George 20 6,520 ft
Jacks Gulch 56 8,100 ft
Kelly Flats 29 6,751 ft
Aspen Meadow - Golden Gate Canyon State Park 35 9,000 ft
Reverends Ridge - Golden Gate State Park 106 9,105 ft
Ski Area Snowpack Air Temperature 5 Day Forecast
Echo Mountain Park 2" 46° 0"
Eldora Mountain Resort 4" 49° 0.61"
Ski Estes Park (Hidden Valley) 3" 48° 1.17"
River Run Streamflow Length Class
Upper South Boulder Creek 79.5cfs None Mi V+
Middle Narrows 83.3cfs 1.0 Mi IV to V-
Rustic (Upper) 83.3cfs 20.0 Mi III to III+
Lower Narrows 83.3cfs 0.5 Mi V- to V+
Lower Boulder Canyon 29.6cfs None Mi IV- to V-
Lower North Fork 83.3cfs 11.0 Mi III
Main Section 37.7cfs 3.0 Mi IV+ to V
Upper Clear Creek 68.6cfs 2.5 Mi IV- to IV+
Upper South Boulder Creek 79.5cfs None Mi V+
Tunnel 1 to Golden Whitewater Park 68.6cfs None Mi III- to III+
Idledale to Morrison 15.5cfs 3.0 Mi IV+ to V
Upper Narrows 83.3cfs 0.5 Mi V- to V+
Filter Plant 22.9cfs None Mi II to III+
Upper North Fork 15.4cfs 9.0 Mi IV+ to V-
Golden Whitewater Park 22.9cfs 0.75 Mi II+
Gnar Section 342.0cfs 1.0 Mi V+
October Hole 19.2cfs None Mi II
NSV 19.2cfs 13.0 Mi V+
Steven's Gulch to Bridges Take Out 83.3cfs 12.0 Mi III- to IV+
SSV - Confluence to Picnic Grounds 19.2cfs 5.0 Mi V to V+
Filter Plant 22.9cfs None Mi II to III+