IC-Cl). Big Creek .— (June 22-25, 19Ulj Parkhurst and Zimmer.) 

 Big Creek enters the Middle Fork approximately 18 miles above the 

 mouth. The stream is about 50 miles long, of which the lower 25 miles 

 were surveyed. It is the largest and most important tributary to the 

 Middle Fork, At the mouth the discharge was between 500 and 600 cf.s, 

 and the water temperature 51i»0°F, At the upper terminus of the survey 

 the flow was about UO cfoS, and the water temperature h6,5°F. The 

 gradient is generally moderate, with extensive shallow riffles and 

 n-jmerous good resting pools. There were U80,000 square yards of suit- 

 able spawning area, constituting 35 percent of the total bottom in the 

 portion surveyed. No obstructions or water diversions were encounter- 

 ed o The stream supports a fair run of chinook salmon and a good 

 spring run of steelhead. It is difficult of access and suffers prac- 

 tically no molestation by man. The present chinook run does not ap- 

 proach the full spawning capacity of the stream, 



lC-(l)a, Monumental Creek . — (Not surveyed) Monumental Creek 

 enters Big Creek approximately 25 miles above the mouth. The stream 

 is about 25 miles long. It is the largest tributary to Big Creek, 

 the two streams being almost equal size at their confluence. Monu- 

 mental Creek was about 30 feet wide at the mouth and was discharging 

 about UO c,f,s. It was reported to support runs of chinook salmon 

 sind steelhead, 



lC-(l)b. Crooked Creek , — (June 26, 191:1; Parkhurst and Zimmer,) 

 Crooked Creek enters Big Creek approximately 25 miles above the mouth, 

 ••■he stream is about 15 miles long, and has a fairly steep gradient. 

 It was discharging about 12 c,f,s, at the time of observation, and was 

 very turbid from mining silt. There are numerous beaver dams in the 

 stream, and it is of little value to salmon, 



lC-(2), Camas Creek , — (June 17-19, 19Ulj Parkhurst and Zimmer,) 

 Camas Creek enteis the Middle Fork approximately 35 miles above the 

 mouth. The stream is about 38 miles long, of vrtiich the lower 19-| miles 

 were surveyed. Near the mouth it was 70 ft, wide, discharging about 

 200 c,f,s,, and the water temperature was U6,0°F, The gradient is 

 fairly steep to .moderate. There were 83,000 square yards of suitable 

 spawning area, constituting approximately 17 percent of the total bot- 

 tom in the portion surveyed. No obstructions or diversions were found, 

 Camas Creek has a fair run of chinook salmon, and is capable of sujv- 

 porting a much larger run, 



lC-(2)a, West Fork, Camas Creek. — (July 12, 19Ulj Zimjner.) The 

 West Fork enters Camas Greek approximately 15 miles above the rnouth. 

 The stream is about 13 miles long, of which the lower 6f miles were 

 surveyed. It is of little value to salmon above the upper terminus 

 of the survey because of the steep gradient and slight volume of flow. 

 Near the mouth the stream width was 20 ft. and the discharge about 

 50 cf.s. The water temperature was U6,0 F. throughout. The gradient 



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