salmon were counted in pools during the survey, and many more 

 probably were unobserved because the fish had not yet moved onto 

 the spavming riffles. The stream is capable of supporting a 

 nuch larger run than was observed, although the entire run may 

 not have ascended from the Middle Fork at the time of the survey, 



1C-(I2). Marsh Creek ,— (July 24-25, 1941j Frey and Bryant.) 

 Marsh Creek enters the Ivliddle Fork approximately loe^- miles above 

 the mouth. The stream is about 14^7 miles long, of which the lower 

 llg- miles were surveyed. Near the mouth it was 66 feet wide, dis- 

 charging between 275 and 300 o.f.s,, and the water temperature was 

 53,0°F, The gradient is moderate throughout. There were 33,000 

 square yards of suitable spawning area, constituting approximately 

 16 percent of the total bottom in the portion s\irveyed. The upper 

 5 miles of the portion surveyed has a large amount of good spawning 

 area. Marsh Creek formerly supported a large run of ohinook salmon, 

 but in the last 20 years, particularly in the decade preceding 1940, 

 the rrxa. had been almost exterminated by the former unrestricted practice 

 of spearing salmon on the spawning beds. At present it supports a 

 very small run of salmon; only nine adult ohinooks and five completed 

 nests were seen during the survey, A fair spring )run of steelhead 

 trout was reported. The stream is of little value in salmon pro- 

 duction at present, but it has great potential value, 



lC-(12)a, Beaver Creek, — (July 29, 1941j Frey and Bryant,) 

 Beaver Creek enters Marsh Creek 5 miles above the mouth. The stream 

 is about 15 miles long, of which the lower 11 miles were surveyedo 

 Near the mouth it was about 40 ft. wide, discharging 90 o.f.s., and 

 the water temperature was 45,0*^, The gradient is moderate in the 

 lower 10 miles, and becomes steep in the upper part. There were 

 35,000 square yards of suitable spawning area, constituting aoproxi- 

 mately 22 percent of the total bottom in the portion survej'-ed. The 

 U, S, Forest Service reported that up to the year 1930 Beaver Creek 

 supported a large run of chinook salmon. The history of the depletion 

 of the run is identical with that of Marsh Creek. At present it 

 supports a very small run of salmon; 11 adult chinooks and 24 nests 

 were seen during the survey. A spring run of steelhead trout was re- 

 ported. The stream is of little value in salmon production at present, 

 but it has great potential value, 



lC-(12)b, Cape Horn Creek. — (July 24-25, 1S41; Frey and Bryant.) 

 Cape Horn Creek enters Marsh Creek about 6 miles above the mouth. The 

 stream is approximately 9^ miles long, of which the lower 5|- miles 

 were surveyed. It is of no value and inaccessible to salmon above the 

 terminus of the survey because of the small valume of flow and numerous 

 beaver dams. Wear the mouth the stream was 24 ft, wide and discharging 

 about 60 c,f,s. Water temperatures 7/ere favorable for salmon, ranging 

 between 45 and 520f, The gradient is slight to moderate in the lower 

 5z miles, and becomes steep in the upper part. There were 28,000 

 square j^ards of suitable spawning area, constituting approximately 44 

 percent of the total bottom in the portion surveyed. Cape Horn Creek 



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