Difficulty II-III
Length 13.5 Miles
Flow Range 700 - 2000 CFS
Flow Rate as of: 1 hour ago 434 [CFS]
Reach Info Last Updated 06/04/2019 7:51 pm

River Description

The section from Lolo Pass to Marmot (Sleepy Hollow Bridge) is boulder filled and changes year to year.  It is mostly class II with some class III areas at regular flows.  The run becomes fun class III-IV at high flows, but wood is sometimes present .  At very high water (rocks heard rolling along the bottom) the confluence with the Salmon gets turbulent and the rest of the run is a fun flush down the middle with large waves and some holes that can sneak up on you.

The most distinct rapid are the class IV Alder Creek Rapids, near an A-framed house on the left.  Scout this rapid along the bedrock on the right.  From here to the old Marmot Dam sight is class II-III with a sneaky hole at the end of a long straight away a mile or so below Alder Creek.


Rapid Descriptions


Gage Descriptions

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Directions Description

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No Accident Reports



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Opportunity for Input on Future Recreation and Stewardship of Sandy River, OR

Thomas O'Keefe

Four years ago AW signed the Settlement Agreement for the removal of Marmot Dam and PGE's Bull Run Hydroelectric Project. As the project is removed the lands will be transferred to public ownership. Paddlers and all who enjoy this river now have an opportunity to help develop a vision for future management of the river corridor including public access to the river and necessary stewardship.
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Oregon - Sandy River Basin Dam Removal Signed!

Scott Collins

Yesterday, American Whitewater signed an agreement to remove two dams in the Sandy River Basin that currently block passage for threatened salmon and steelhead. The agreement will preserve 5,000 acres of land and significantly improve intermediate boating opportunities in the area.
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Sandy River Found Navigable! (OR)

Jason Robertson

American Whitewater helped Oregon's residents win a major navigability victory on the Sandy River this week. Oregon's State Land Board ruled on February 5th that the lower 37.5 mile section of the Sandy River is navigable under Federal law.

Jacob Cruser


Matt Muir


Thomas O'Keefe


Revision #Revision DateAuthorComment
1205479 11/23/15 Jacob Cruser added description
1191338 05/19/06 n/a n/a
1198669 11/14/10 Thomas O'Keefe photo added
1212692 06/04/19 Jacob Cruser updated image position