EAST FORK BIG LOST RIVER

RIVER RUNS
2024-09-23
6,862 ft 43.93, -114.11

Winter Storm Warning
2024-12-27T17:00:00-07:00

* WHAT...Heavy snow expected. Total snow accumulations between 4 and 19 inches. In the central Idaho mountains, including the towns of Stanley, Ketchum, and Hailey, amounts will range from 5 inches at the lowest elevation to more than 24 inches on the very highest peaks. For the areas bordering Utah, expect 1 inch at the lowest elevations to more than 20 on the highest peaks in that area. In the eastern and southeastern highlands, snowfall will range from 3 inches at lowest elevation to more than 20 inches in passes heading to Wyoming. * WHERE...Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin, Sun Valley Region, Wood River Foothills, Big Hole Mountains, Centennial Mountains - Island Park, Teton Valley, Bear River Range, Blackfoot Mountains, Caribou Range, Franklin/Eastern Oneida Region, Marsh and Arbon Highlands, Raft River Region, and Southern Hills/Albion Mountains. * WHEN...From 5 AM Thursday to 5 PM MST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes.


°F

°F

mph

Windspeed

%

Humidity

The East Fork Big Lost River in Idaho offers an exciting whitewater experience for kayakers and rafters alike. The ideal streamflow range for this river is between 200-500 cubic feet per second (cfs) during the summer months. The river is classified as a Class III-IV, making it suitable for intermediate to advanced paddlers. The segment mileage for the river run is approximately 9.5 miles, with a put-in at the East Fork Bridge and a take-out at the confluence with the Big Lost River.

Some of the notable rapids and obstacles on the East Fork Big Lost River include The Slide, a Class IV rapid with a steep drop and a tight left turn; The Hole, a Class III rapid with a large hydraulic that can be tricky to navigate; and The Squeeze, a narrow section of the river with a rock formation that creates a challenging maneuver for paddlers.

There are specific regulations to be aware of when paddling on the East Fork Big Lost River. The area is managed by the Bureau of Land Management, and a permit is required for overnight camping. Additionally, boaters are required to carry a personal flotation device (PFD) and a whistle, and motorized watercraft are not allowed on the river.

Last Updated 2024-09-23
River Levels 505 cfs (3.82 ft)
Percent of Normal 89%
Status
Class Level iii-iv
Elevation ft
Streamflow Discharge cfs
Gauge Height ft
Reporting Streamgage USGS 13120000
       

Get Unparalelled Insights

Explore the 3D Map

Whether you're planning your next ski trip or tracking stream flows for an upcoming rafting expedition, our map has it all.

Weather Forecast

Featured Destination

Lawrence Heagle Park

Lawrence Heagle Park is a picturesque location in the state of Idaho that offers visitors a chance to relax and enjoy the beauty of nature. Located in the city of Nampa, the park is a popular destination for locals and tourists alike. One of the main reasons to visit Lawrence Heagle Park is for its natural beauty. The park features ...