Page 



* Clear Creek 



* lost Creek 



* Clear Fork 



* Muddy Fork 



23. Latourelle Creek IS 



24. Young Creek 19 



25. Bridal Veil Creek 24 



26 . Wahkeena Creek 24 



27. Multnoiiah Creek 24 



28 . Oneonta Creek 24' 



29 . Horsetail Creek 24 



30. Tumult Creek 24 



31. McCord Creek 24 



32 . lt)ffezt Creek 24' 



33 . Tanner Creek, 24 



The Siirvey 



1. Skipanon River . — (April lU, 1938; Hanavan, Parkhurst, and KolloenO 

 Enters the Columbia River 5 miles above the mouth at Warrenton, Oregon. 



It is 4- miles long, slough-lilce in nature, and lias a flow of about 5 c.f.s» 

 The lower portion of tl'ie stream is often polluted by waste products from 

 fish rendering and processing plants. The stream is of no value to salmon. 



2, I^wis and Clark River . — (April 13, 1938; Parkhurst and Kolloen. 

 Jfey 7-8, 1946; Zimner, Fulton, Brewington, and Ifeltzeff.) Enters Youngs 

 Day 8 miles above the mouth of the Columbia River. The stream is 25 miles 

 long, of which the lower 6 miles is a tidal slough of no value to spawn- 

 ing salmon. The stream was surveyed for a distance of lOf miles above 

 tidewater. In the section surveyed the stream was 10-30 feet wide, had a 

 flow of 80 c.f.s., and the water temperature vras 49 - 54° F«^ on May 8, 

 1946. The stream gradient is moderate in the lower section survej'Bd, in- 

 creasing to fairly steep upstream. 



The 7z mile section from tidewater up to a deep canyon has low banks 

 that are usually flooded each spring, and is bordered by pasture land and 

 brushy slopes. Dense marginal vegetation affords some protection to fish 

 along the entire stream course. 



The canyon is approximately 1 mile long and the walls are so steep 

 and the stream so deep that the survey party was unable to survey this sec- 

 tion in detail. 



The 7/arrenton domestic water supply dam, vdth an allotted diversion of 

 20 c.f.s., is located just above the canyon. The 1938 survey party found 

 an impassable 35-foot high log dan at this point. This structure was later 

 washed away and was replaced in 194^-47 by a new permanent structure that 

 is provided with a fish ladder. 



* Streams too small or too steep to warrant survey. 



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