For a distance of about 11 miles above the mouth to the 

 entrance of the TThitman National Forest, the stream extends through 

 a gently sloping valley v/^hioh gradually narrows upstream. The 

 stream was 60 to 70 feet iivide in this section, and was discharging 

 about 200 o.f.s. The water temperature ranged from 59 F. near the 

 mouth to 57 F« upstream. The gradient is moderate and the stream 

 bottom is composed chiefly of medium and small rubble. Good shallow 

 riffles are almost continuous for the first 6 miles, and adequate 

 resting pools first appear in the succeeding 5 miles. It was esti- 

 mated that 75 to 90 percent of the stream bed in this section con- 

 stituted suitable salmon spawning area, 



A log wing dam located about 7 miles above the mouth was 

 diverting about 5 o,f.s, into an irrigation ditch. This dam does 

 not extend entirely across the stream, and is not a barrier to fish. 



A small irrigation diversion occurs about 9 miles above the 

 mouth. There is no dam in connection with this ditch, and it was 

 withdrawing only about 2 o,f,s» 



Another irrigation diversion occurs about 11 miles abov» 

 the mouth, just 100 yards below the entrance to the Yfhitman National 

 Forest, There is no dajn in connection' v;-ith this ditch, and it was 

 withdrawing about 10 c,f,s,, which seemed to be a capacity flow* 



Above this point the stream extends through the Whitman 

 National Forest, and there are no habitations except the U, S, Forest 

 Service Guard Stations, From a point near the National Forest en- 

 trance to the headwaters the streaun runs through a narrow, rooky 

 canyon, which becomes increasingly steep as it narrows upstream. 

 The stream was about 50 feet wide at the lower end of this section, 

 axid was discharging about 170 c,f,s. The water temperature remged 

 from 57 F» to 54 F» The gradient is moderate to fairly steep, in- 

 creasing upstreajn. There are numerous good riffle areas, which 

 become smaller as the stream becomes more narrow, and the gradient, 

 pools, and large rubble increase. 



Main Eagle Creek has its source in Eagle Lake, and it is 

 also fed by short, steep tributaries leading from several other 

 small, high mountain lakes, 



Bagle Creek is one of the few streams in eastern Oregon that 

 is reported to maintain at present a fairly good rim of chinook salmon. 

 The stream also has a good run of steelhead trout. It has the great- 

 est present and potential value to salmon of any of the smaller 

 streams in this area, 



6B-(1) Skull Creek. — (July 16, 1942; Parkhurst, ) Skull 

 Creek enters Eagle Creek approximately 11 miles above the mouth. 

 It is about 4 miles long. Skull Creek is a small stream, flowing 

 less thaja 1 c,f,s. It has a steep gradient, and is of no value to 

 salmon, 



77 



