25EE-(3)o Rattlesna k e Creeko — (llot surveyed) A small stream 

 about 5 miles long entering x,he Middle Fork of the Willamette River 

 approximately llf miles above the mouth. It is of no value to salmon o 



25EE"(4) » Lost Cresk. — ( June 9-10, 193B; Kanavan, parkhurst, 

 Ifarton, and "ijildlng <. } liters the Middle Fork, Willamette River ap- 

 proximately 12-| miles above the mouth. The stream is about 14 miles 

 longj of ifhich the lower 7|- miles up to an impassable lumber mill dam 

 were S'orveyed, 



iliroughout most of the section surveyed the stream flows through 

 flat, cult iA'-a ted valley lands. The gradient in this section is slight., 

 and the stream bed is composed cniefly of mud and silt. The upper por- 

 tion of the course arains a hilly area covered \i±ti\ a fairly dense 

 groTrth of fir and hemlock. The flow below the dam at the upper end of 

 the survey was 13 c.foSo The lower portion of the stream is impassable 

 at lov/ Y/ater in some seasons because most of the vrater is diverted in- 

 to flumes carrying lumber to the Middle Willamette River, There -were 

 three savmills dumping sawdust, bark, and slashings into the upper sec- 

 tion of the stream-j where in many places the banks were lined \i±th 

 this accumulated refuse.. 



There is almost no salmon Sj^airming area in the jxilluted, mud bot- 

 tom lower section, and very little in the bedrock covered upper sec- 

 tiono A few spring Chinook salmon vrere reported to have entered the 

 stream many years ago, but it is of no present value. Suckers, chubs, 

 minnoTfs, and other rough fish were numerous in the lower section^ and 

 a few small trout were reported in the upper section. 



25E3-(5). nort h Fork of Middle Pork Vfillamette .— (August 1, 1937, 

 and July 11-15. 193B; ;Lana.van., Kolloen, Morton, and langton.) Enters 

 the Middle Fbrk of the V/illam.ette approximately 36 miles above the 

 mouth. The stream is about 4.6 miles long, of vrtiich the loT/er 37 miles 

 to Skookum Creek were suiweyed. Gaging records of the II. S. Geological 

 Survey for the vrater year 194-4-45 taken at a station 1 mile above t}ie 

 mouth show a r.iiniin.oiii flow of 101 c.f .s., in October and a i laxirim;), flov; 

 of 6,850 c.f. 3., in February, however, an unprecedented flood dis- 

 charging an estijiiated 20_,;C00 c.f.s., has been knovm to occur. The 

 vrater temperature ranged from 54° to 64° F. 



The North Fork extends through a narrow valley bordered by high 

 hills. The lower and middle sections of the watershed have been 

 logged, and logging operations are now extending into the virgin 

 conifer forests of the upper, mountainous section. However, a good 

 second growth is occurring m the older logged-off area in the lowe.v 

 section. Forest fires iiaive laid waste a large section of the upjjer 

 vratershed. thus addling to tlie danger of flash floods. There is prac- 

 tically no cultivation of the area, the principal activities being log- 

 ging and lumberingo 



7.3 



