This photo needs editing.
Difficulty II-IV
Length 7.5 Miles
Gauge Potato@Hwy.169
Flow Range 150 - 450 CFS
Flow Rate as of: 1 hour ago ~ 27.954 [CFS]
Reach Info Last Updated 12/28/2019 7:53 pm

River Description

Higher grade rapids are in first 1.5 miles from Foster Falls, most of which can be done as an extension of the prior reach and then exit the river.

The following video show runs of Foster Falls:

Rapid Descriptions

USGS sampling site

Class - N/A Mile - 0
Rapid Thumbnail Missing

USGS lists a sampling site at our listed put-in for this section, citing drainage area at this point as 65.1 square miles.


Class - N/A Mile - 0.1
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Class - N/A Mile - 0.3
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Class - N/A Mile - 0.8
Rapid Thumbnail Missing


Class - N/A Mile - 3
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Minor Rapids?

Class - N/A Mile - 3.33
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Braided Channel

Class - N/A Mile - 3.38
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LARGE Island

Class - N/A Mile - 3.66
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Class - N/A Mile - 5.02
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Confluence: Lawrence Creek

Class - N/A Mile - 5.736
Rapid Thumbnail Missing


Gage Descriptions

*This is a 'virtual gauge', based upon the fact that the Potato River at Hwy.169 drains 92.7 square miles. It flows into the Bad River about 4 miles upstream of its (currently active) gauge, which lists total drainage of 597 square miles. The ratio of those areas (92.7 / 597 = 0.15528) is applied to the Bad River gauge to approximate flow in the Potato.

Obviously, a virtual gauge based upon such a calculation will not be completely accurate at representing flow in this reach. Branches will not always contribute proportionally to the gauge reading. The downstream gauge (and thus the virtual gauge based upon it) will lag flow in the upper reaches. This means the upper reaches will flow before the gauge reflects runnability, and the gauge will show runnability after flow in the upper reches have declined.

Boaters are advised to take this into account. Visual inspection will be the best 'gauge'.

The 'recommended minimum' and 'recommended maximum' are presently little more than guesses based upon common values for upper Midwest runs, and need substantiation and revision. Anyone with experience running this reach is encouraged to provide info ('data points') via the "Comments" tab, "Add a comment" button.

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






Matt Muir


Revision #Revision DateAuthorComment
1214079 12/28/19 Rob updated description
1192610 05/01/08 n/a n/a
1203137 03/07/14 Rob Minor edit