Collawash - 1. Big Dog

Collawash, Oregon, US


1. Big Dog

Usual Difficulty IV-V (for normal flows)
Length 5 Miles

Gauge Information

Name Range Difficulty Updated Level
usgs-14209500 2.50 - 5.00 ft IV-V 07h20m 1.98 ft (too low)

River Description

This run begins with four miles of class II warmup, which includes at least one portage over a massive log jam; beginning a short ways below this log jam are two miles worth of class IV-V rapids. The second rapid in this section (Big Dog), is a step above the rest.  Read a description, as always with stunning pictures, on Jason Rackley's Oregon Kayaking site. Due to the unstable geology of the area, some of the rapids have changed for better or worse since that description.  After the initial set of challenging rapids, the run eases half a class before eventually settling to moderate IV just above the take out. Rackley also suggests that one might want to tack two miles of the Lower Collowash onto this run for added amusement.

 In 2014 (at about 2100 cfs at Three Lynx) all the rapids were run and deemed clean/enjoyable.  The only log portage was the large log jam above the steep section.  Scouting/portaging was easily done throughout the duration of the run.

The foot gauge correlates with about 2000-5000 cfs in the Clackamas@Three Lynx.

Trip report at Into The Outside.

StreamTeam Status: Not Verified
Last Updated: 2017-07-27 22:22:51

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.

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Associated Projects

  • Mt. Hood Wilderness (OR)
    In 2009 new Wilderness and Wild and Scenic Rivers were established for the forests of Mt. Hood.