Generation And Giant Gaps (Tadpole To Colfax-Iowa Hill Road)


The gaps are still expert runs but the river has calmed down some (compared to the Royal Gorge).  There is still plenty of class IV and V to be had in here so this run is still for advanced boaters.

Suggested river levels for paddling this section of the American River, North Fork are between a bare minimum of 500cfs and a high of 2,500cfs. River conditions sourced from USGS 11427000, the Nf American R A North Fork Dam Ca Remember only watercraft are permitted at Generation and Giant Gaps (Tadpole to Colfax-Iowa Hill Road).

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Whitewater Rapids

Obstacles on the river run
Tadpole Falls
Class V
Mumford Bar Ledge Rapid
Class IV+
Slide Rapid
Class IV to IV+
F-14
Class V-
Giant Gap Entrance Rapid
Class III+ to IV
Grater Rapid
Class IV to IV+
Nutcracker Rapid
Class IV to V-
Locomotive Rapid
Class IV+ to V
Dominator Rapid
Class V
Pinball Rapid
Class IV

Area Hydrology

Gauge Streamflow Stage
Donner C A Donner Lk Nr Truckee Ca
USGS 10338500
55 cfs 3.5 ft
Cosumnes R A Michigan Bar Ca
USGS 11335000
6 cfs 2.1 ft
Glenbrook Ck At Glenbrook
USGS 10336730
0 cfs 1.5 ft
Truckee R A Farad Ca
USGS 10346000
127 cfs 3.0 ft
Little Truckee R Bl Boca Dam Nr Truckee Ca
USGS 10344500
8 cfs 0.6 ft
Independence C Nr Truckee Ca
USGS 10343000
4 cfs 2.3 ft
Dog Creek At Verdi
USGS 10347310
1 cfs 2.4 ft
Incline Ck Abv Tyrol Village Nr Incline Village Nv
USGS 103366993
7 cfs 3.1 ft
Trout C Nr Tahoe Valley Ca
USGS 10336780
8 cfs 5.1 ft
Incline Ck Nr Crystal Bay
USGS 10336700
1 cfs 1.4 ft
Snotel Site Snowpack 24hr Change
Tahoe City Cross
SNOTEL 809
1" 0"
Squaw Valley G.C.
SNOTEL 784
1" 1"

Outdoor Recreation

Campground Campsites Reservations Toilets Showers Elevation
Woodchuck 8 6,256 ft
Fuller Lake None 5,380 ft
Lake Spaulding 25 5,048 ft
Donner Summit Area - Lake Spaulding 25 5,045 ft
Hampshire Rocks 30 5,921 ft
Grouse Ridge 9 7,410 ft
McMurray None 5,880 ft
Sterling lake- dispersed None 7,036 ft
Lindsey Lake 10 6,271 ft
Robinson Flat 14 6,696 ft
Carr Lake 12 6,668 ft
Sterling Lake 8 7,023 ft
Ski Area Snowpack Air Temperature 5 Day Forecast
Alpine Meadows Ski Area -4" 69° 0"
Sugar Bowl Resort -1" 76° 0"
Tahoe Donner 0" 70° 0"
Soda Springs 0" 70° 0"
Squaw Valley 1" 69° 0"
Boreal Mountain Resort 0" 70° 0"
Donner Ski Ranch 0" 70° 0"
River Run Streamflow Length Class
Generation and Giant Gaps (Tadpole to Colfax-Iowa Hill Road) 26.0cfs 26.8 Mi IV to IV+
Yankee Jim Road to Ponderosa Way (Shirttail) 26.0cfs 5.0 Mi II to III
Royal Gorge (Soda Springs to Tadpole Creek) 105.0cfs 25.0 Mi V to V+
Chili Bar 26.0cfs 8.0 Mi III to IV
Coloma to Greenwood - (C to G) 26.0cfs 5.0 Mi II to III-
Tunnel Run (Ralston Powerhouse to Greenwood) 26.0cfs 16.5 Mi IV- to IV