Imnaha - Imnaha to Snake River


Imnaha, Oregon, US

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Imnaha to Snake River

Usual Difficulty III-IV (for normal flows)

rapids for the last 4 miles


rapids for the last 4 miles
Photo taken 05/29/13

Gauge Information

Name Range Difficulty Updated Level


River Description

The 7 miles below the town of Imnaha is pretty flat flowing through ranch land (mainly class I and II with an ocasional class III move). The scenery picks up at Fence Creek where the road turns to dirt and this is probably your best put-in option. Below this point the scenery is stunning! The whitewater is mainly class II and III. After Cow Creek the river pick up a bit. Class II and III with a few class IV moves thrown in. No big rapids, mainly one move type scenarios. Lots of fun eddy catching moves in this strecth. Not too hard, but really fun. The hike back up to Cow Creek is not bad. Mostly flat with a few small uphill sections. Bring long pants for the hike due to poison ivy. The alternative is to continue on the Snake down to Heller Bar. If your are in the area, this run is well worth it for the stunning scenery alone. The fun somewhat technical whitewater is a bonus.

Some more info at   http://mthoodh2o.blogspot.com/2011/09/starting-with-guidebook.html

Flow Info

The old gauge for this section that read in cfs is no longer available. The gauge that is now associated with this river section only has data in the feet stage metric. So, as a workaround, you can check the cfs listing on the Idaho Power site. The previously listed low to high range for a similar cfs reading gauge for this section was 900 - 2000 cfs.


StreamTeam Status: Not Verified
Last Updated: 2014-01-24 16:30:49

Rapid Descriptions

icon of message No rapids entered. If you know names, and locations of the rapids please contact and advise the StreamTeam member for this run.

User Comments

Users can submit comments.
May 30 2013 (1521 days ago)
T4eresa (153294)
ANOTHER RUN. There are more whitewater runs in the upper reaches of the river. We ran from Indian
Crossing to a campspot just below all the campgrounds, 11.4 miles with an average gradient of
53'/mile. The first 6-7 miles were meandering and full of beaver-wood, scenic but lacking in actual
whitewater. The gradient is mostly in the last 3 miles before the bridge between the
campgrounds----it is very continuous class II+ thus earning a III rating, with wood hazards to keep
you honest.
May 30 2013 (1521 days ago)
T4eresa (153294)
We ran from 1/2 mile above the town of Imnaha (river right) to Heller Bar on the Snake in three
easy days. At launch the Imnaha flow was 950 and falling, which was medium-low for kayaks; rafters
would want more. Ranches line the banks until Cow Creek where there is a toilet and currently also
a fish trap. After Cow Crk the terrain is more rugged and isolated. There is a good trail along the
river left bank from Cow Creek to the confluence, and that section of whitewater is the best part
of the run with lots of great eddies and some surf spots. It was fairly continuous class III at
this flow, requiring class IV skills to stay out of trouble. There was no problematic wood. Camping
at the Imnaha-Snake confluence allows for a hike back up the trail. The 20+ miles on the Snake was
mostly flatwater with jetboat exhaust and vacation homes on the banks. You do get to see the
confluence of the Salmon and Snake not far below the Imnaha confluence, and the Grand Ronde joins
the Snake immediately above Heller Bar. Mileages and gradients: Our put-in to the lower Imnaha
bridge: 6.5 miles, average gradient 35'/mile. Lower Imnaha bridge to Cow Creek bridge: 13.6 miles,
avg gradient 43'/mile. Cow Creek bridge to the confluence: 4.2 miles, average gradient 53'/mile.
June 15 2009 (2965 days ago)
x (1)
I just ran the sections from the town of Imnaha to the confluence of the Snake at 1380cfs. The 7
miles below the town of Imnaha is pretty flat (mainly class I and II with an ocasional class III
move). This part of the river flows through degraded farm and ranch land. The scenery picks up at
fence creek. This is where the road turns to dirt and where I would reccomend putting it. Below
here the scenery is stunning! The whitewater is mainly class II and III. After cow creek the river
pick up a bit. Class II and III with a few class IV moves thrown in. No big rapids, mainly one move
type scenarios. Lots of fun eddy catching moves in this strecth. Not too hard, but really fun. The
hike back up to cow creek is not bad. Mostly flat with a few small uphill sections. Bring long
pants for the hike due to poison ivy. If your in the area, this run is well worth it for the
stunning scenery alone. The fun somewhat technical whitewater is a bonus.
April 24 2006 (4113 days ago)
Mark JohnsonDetails
Great trip for kayak or cataraft. Recommend 1500+ for catarafts. Beautiful canyons, lots of
cowpies. Mostly Class 2-3, last 5 miles is Class 3-4. We launched at bridge on paved portion of the
road.


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