6E. ITolf Creek. — (July 5, 1942; Parkhurst,) Wolf Creek 

 enters the Powder River approximately 58 miles above the mouth* 

 It is about 16 miles long. The stream had an average width of 

 8 feet, and was discharging about 4 c,f.s» The water temperature 

 vf&s 72 F. near the mouth. The gradient is moderate, with nvmerous 

 shallow riffles and small pools. It was estimated that 30 percent 

 of the bottom constituted suitable salmon spawning area. The 

 stream is ■vrtiolly inaccessible to anadromous fish because of the 

 Thief Valley Dam. It is of slight potential valua to salmon, 



6P. North Powder River ,—' (July 7, 1942; Parkhurst.) The 

 North Powder River enters the main Powder River approximately 

 61 miles above the mouth. It is about 26 miles long. The North 

 Powder extends through a gently sloping, cultivated valley for 

 a distance of about 11 miles from the mouth to Anthony Fork. The 

 stream had an average width of about 25 feet in this section, 

 and was discharging 49 o.f.s. The water temperature ranged from 

 70 F, at the mouth to 54 F, at Anthony Fork, The gradient is 

 moderate, with numerous good shallow riffle areas emd adequate 

 resting pools. The stream bed is composed chiefly of medi\im and 

 small rubble, and it was estimated that 30 percent of the bottom 

 in the lower 6 miles and 50 percent of the bottom in the next 5 

 miles constituted suitable salmon spawning area. 



An irrigation diversion dam is located about l-g miles above 

 the mouth, at the tavm of North Powder. This dam is 1 foot high, 

 about 50 feet long, and is not a barrier to fish except during low- 

 water. The ditch is 6 feet vriie and was withdrawing 2g c. f . s. 



Another irrigation diversion dam is located a short distance 

 above the town of North Powder. This dam is about 2 feet high, 30 

 feet long, and is not a barrier to fish except during low water. 

 The ditch was mthdrawing about 4 o.f.s. 



An irrigation diversion dam is located about 7 miles above 

 the mouth. This dam is 2 feet high, 30 feet long, and is not a 

 barrier to fish except during low water. The ditch is 6 feet wide, 

 and was withdrawing about 2 o.f.s. 



Above Anthony Fork the North Powder extends through a narrow 

 canyon, which becomes increasirigly steep as it narrows upstream. 

 For the first 3 miles of this section, up to the mouth of Antone Creek, 

 the stream had an average width of 18 feet, and was discharging 272 

 c.f.s. The water temperature was 52 F. The gradient is fairly steep, 

 vrith some small, shallow riffle areas, and many small cascades. It 

 was estimated that about 30 percent of the stream bed between Anthony 

 Fork and Antone Creek constituted suitable salmon spawning area. 



Above Antone Creek the stream extends for a distance of some 

 12 miles to its source in two small, high mountain lakes. This upper 

 section is of no possible value as salmon spavming area because of 

 the increasingly steep gradient, preponderance of large rubble, and 



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