Outlet Alteras Lake To Confluence With Salmon River Paddle Report

Last Updated: 2026-01-09

The whitewater river run from Outlet Alteras Lake to Confluence with Salmon River in Idaho is a thrilling adventure for kayakers and rafters.


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Summary

The ideal streamflow range for this section is between 800-2,000 cfs. This section is rated Class III-IV, making it suitable for intermediate to advanced paddlers. The segment mileage is approximately 26 miles, offering a challenging and exciting experience for those who choose to embark on this journey.

The river features several notable rapids, including Deer Creek Falls, which is a Class IV rapid that requires technical maneuvering skills. The Lunch Counter is another rapid that is infamous for its large waves, making it a Class III+ rapid. Additionally, Big Mallard Creek and Elkhorn Rapids provide exciting challenges for paddlers.

There are specific regulations to be aware of in this area. All paddlers must wear a personal flotation device (PFD) and a helmet. The use of alcohol is strictly prohibited, and all waste must be packed out. Campfires are only allowed in designated areas, and visitors must obtain a permit before camping.

In conclusion, the whitewater river run from Outlet Alteras Lake to Confluence with Salmon River in Idaho provides an exhilarating experience for intermediate to advanced paddlers. With a range of class III-IV rapids and specific regulations to adhere to, this section of the river offers a challenging and exciting adventure for those who choose to tackle it.

River Run Details

Last Updated 2026-01-09
River Levels 595 cfs (2.09 ft)
Percent of Normal 102%
Status
Class Level iii-iv
Elevation ft
Streamflow Discharge cfs
Gauge Height ft
Reporting Streamgage USGS 13295000
       

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