the mouth. The stream is about 37 miles long, of which the lower 2? 

 miles were surveyed. Near the mouth it wis about 50 feet wide, dis- 

 charging more than 200 c.f.s,, and the water temperatiire was 58.0°F. 

 Ihe gradient is mostly slight to moderateo There were 150,000 sq, yd, 

 of suitable spawning area, constituting approximately 21 percent of 

 the total bottom in the portion surveyed. Several beaver dams render 

 the upper part of the streaai difficult of access to salmon. Bear 

 Valley Greek formerly 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 j 1? live 

 adult chinooks, 1 dead spa-mied-out Chinook, and 6 nests were seen 

 during the survey. A spring run of steelhead trout was reported. 

 The stream is of slight value as a salmon producer at present, but it 

 has great potential value, 



lC-(13)a, KLk Creek .— (July 28, I9UI; Frey and Bryant.) 

 Elk Creek enters Bear Valley Creek 11 miles above the mouth. The 

 stre?jii is approximately 22 miles long, of which the lower 13 miles 

 were surveyed,- Near the pouth it was 36 ft, wide, and was discharg- 

 ing about 100 c,f,s. The water temperature was $3,0°F, The gradient 

 is mostly slight. There were Ul,000 sq, yd, of s uitable spawning 

 area, constituting approximately 19 percent of the total bottom in 

 the portion surveyed, Slk Creek formerly 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; 5 live adult chinooks, 1 dead sp?.wned-out Chinook, and I6 

 nests were counted during the survey, A spring run of steelhead trout 

 was reported. The stream is of slight value as a salmon producer at 

 present, but it has a great potential value, 



lC-(13)b. Sack Creek .— (July 27, 19Ulj Bryant.) Sack Creek 

 enters Bear Valley Creek approximately 18 mdles above the mouth. The 

 stream is about 5| miles long, of which the lower ij miles were 

 surveyed. It was too small to be of any value to salmon above the 

 terminus of the survey. Near the mouth the stream was 6 feet wide 

 and was discharging less than 10 c,f,s. The gradient is slight to 

 moderate, '^ere were only 500 sq, yd. of suitable spawning area, 

 constituting approximately lU percent of the total bottran in the 

 portion surveyed. Two beaver dams in the lower 200 yd, were considered 

 to be passable with difficulty. No salmon were seen during the survey. 

 Sack Creek is of little possible value to salmon because of its small 

 size, 



lC-(13)co Cache Creek .— (July 27, 19hl; Frey.) Cache Creek 

 enters Bear Valley Creek approximately 19^ miles above the mouth. The 

 stream is about 6 miles long, of wiich the lower 2 miles were surveyed. 

 It was too small to b e of value to saLmon above the terminus of the 

 survey. Near the mouth the stream was about 1$ feet wide, discharging about 

 ]5 c,f,s., and the water temperature was 5ii,0°F, The gradient is slight 



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