This photo needs editing.
Difficulty II at this flow (I-II normally)
Length 11.1 Miles
Flow Range 250 - 3000 CFS
Flow Rate as of: 53 minutes ago 3640 [CFS] ℹ️
Reach Info Last Updated 01/15/2018 4:30 pm

River Description

We have no specific first-hand info on this reach, however, looking at the topo maps, there are a good number of marked 'rapids'. Satellite views are inconclusive, but appear to show areas of low-grade rocky (gravel-bed?) rips. So . . . this may be mostly just swiftwater and splishy-splash, or it could be a fine beginners (intermediates?) stretch of river.

We would welcome input from anyone who has run this reach. Please leave a comment or report (with photos, if possible)!

Rapid Descriptions

Put-in: Drainage area: ~355 sq.mi.

Class - N/A Mile - 0
Rapid Thumbnail Missing

At our listed put-in, drainage area is ~355 square miles (as calculated by USGS StreamStats beta software). Not far downstream, with the addition of the N.Fk.Jump River, it increases to ~508 square miles. At our take-out it is 549 sq.mi. (an total increase of 55%).

Big Falls run-out

Class - N/A Mile - 0
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Putting in from the first turn-out parking in the Jump River Campgrounds (at the bottom of the main falls sequence), you'll have very fine rapids for about 0.4 miles before they taper off (at an island in the flow).

(With full disclosure that I have never paddled the rest of this run, it *appears* from satellite views that this half-mile *could* be the best rapids on the whole listed run. Anyone who has actually paddled the full run is encouraged to add a comment and/or pictures/video to either substantiate or refute this impression!)

Confluence with N.Fk.Jump

Class - N/A Mile - 1.62
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You will likely encounter random light riffles to the confluence with the N.Fk.Jump.

marked 'Rapids' #1

Class - I Mile - 2.29
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From aerial/satellite views it looks like a very minor bit of rock-garden.

marked 'Rapids' #2

Class - N/A Mile - 2.72
Rapid Thumbnail Missing

From aerial/satellite views it's hard to really discern much here.

marked 'Rapids' #3

Class - N/A Mile - 4.4
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From aerial views, a few minor rock-gardens and shoals appear in this area as the river takes a few good swings in directions from about the 4.4-5.0 mile mark.

marked 'Rapids' #4

Class - N/A Mile - 5.35
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After a sharp turn from due-west to SouthEast, another rapids is marked. Again, aerial views show little more than minor shoals and random rocks in the river.

marked 'Rapids' #5

Class - N/A Mile - 6.15
Rapid Thumbnail Missing

Same story. (I.E., see above)

marked 'Rapids' #6

Class - N/A Mile - 7
Rapid Thumbnail Missing


marked 'Rapids' #7

Class - N/A Mile - 7.5
Rapid Thumbnail Missing

marked 'Rapids' #8

Class - N/A Mile - 8
Rapid Thumbnail Missing

Yup. You guessed it. More of the same.

marked 'Rapids' #9

Class - N/A Mile - 8.3
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As above (though even less in evidence here).

marked 'Rapids' #10

Class - N/A Mile - 8.56
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Gotta believe they got tired of marking nearly negligible rock gardens as rapids. From here to the take-out (from aerial views) there are a number of areas with at least as apparent rocks or shoals but which have not been marked. (Including leading right into the listed take-out.)


Gage Descriptions

Gauge/flow analysis (based on USGS data, 1915-2013)
Drainage area at gauge: 576 sq.mi.
Minimum daily mean flow (1943.12.18): 11 cfs
90% of time flow exceeds: 47 cfs
10% of time flow exceeds: 1280 cfs
Maximum daily mean flow (1941.08.31): 40,800 cfs
10/90 ratio ('flashy-ness'): 27 (under 3 is quite steady, over 10 is quite 'flashy')

Directions Description

We have no additional detail on this route. Use the map below to calculate how to arrive to the main town from your zipcode.

No Accident Reports






Revision #Revision DateAuthorComment
1200765 10/24/11 Rob n/a
1200766 10/24/11 Rob Initial add.
1203821 11/17/14 Rob Add gauge analysis
1207522 05/08/17 Rob reset put-in
1208747 01/15/18 Rob minor reformat