numerous, constituting about 75 percent of the stream bed or 130,000 

 square yards. In the loirer 7-aile section suitable spa-vming area -was 

 estimated at about 90 percent of the stream bed. Only a few chinook 

 salmon and steelhead trout enter this stream at the present time. 

 Good runs were reported before construction of the Nine Mile dam on 

 the main Walla Walla River, 



There are five small, unscreened irrigation diversions carry- 

 ing from 1 to 2 c.f»s, each. There are several low, temporary diversion 

 dams, none of irtiich is a total barrier to fish. 



5D-(7)a-i. Robinson Creek . — (June 11-15* 1935 J Suomela and Shuman.) 

 Enters Wolf Creek 2 miles above the mouth. This creek has a total length 

 of about 12 miles, of iriiich the lower 8 miles were surveyed. It has an 

 average width of about 10 feet and at the time of survey the flow was 

 estimated at about 9 c.f.s. It was estimated that there were 37,000 

 square yards of suitable spawning area, or about 82 percent of the stream 

 bed in the section surveyed* In the lower 2-mile section suitable 

 spawning area was estimated to be about 9S percent of the stream bed* 

 These areas are little used by chinook and steelhead trout at the present 

 time. Good runs of these fish were reported to have entered prior to 

 the year 1900, There are no natural obstructions, dams, diversions, or 

 soxirces of pollution. The potential fishery value of the stream is 

 limited because of its small size. 



5D-(7)b. Rodgers Gulch , 5D-(7)c. Weidman Gulch , 5D-(7)d. 

 Jim Creek , and 5D-(7)e. Lewis Creek ^April 28, 1937; BurroTrs & 

 Whiteleather . ) These are all small streams entering the horth fork of 

 the Touchet River above the confluence of Wolf Creek. At the time of 

 inspection they were flowing from U to 5 c.f.s., and it is highly prob- 

 able that they become nearly dry in summer. They all have steep grad- 

 ients, lack suitable spawning areas, and must be considered as having 

 no value to salmon. 



5D-(8). South Fork of the Touchet River .— (June 12-13, 1935j 

 Suomela and Shuman. ) Joins the north fork to form the main Touchet 

 River 61,5 miles above the mouth of the latter. The south fork has 

 a length of about 2U miles of which the lower 21 miles were surveyed* 

 At this point an impassable falls blocks the upstream passage of 

 migratory fish. The average width of the stream near the mouth was 

 about 25 feet, and in the upper section about 6 feet. It was estimated 

 that there were 200,000 square yards of suitable spawning area in the 

 stream, or about 8U percent of the stream bed. The entire bottom area 

 in the lower 2-mile section is suitable for spawning. De^ resting 

 pools are numerous in the lower stream section. In the upper section 

 the gradient becomes steeper and suitable spawning areas are limited. 

 It is reported that at times the flow may become very low, and that 

 under extreme conditions the stream may become completely dry in the 

 lower mile. The deep pools, however, retain water and provide some 

 protection for fish, since this drying up is of short duration. No 

 salmon have been reported in recent years, but the south fork supports 

 the largest run of steelhead trout of any stream in the Touchet river 



34 



