The Lost Valley reservoir dam is about UO feet high and 

 300 feet long. The regulated discharge occurs through outlet gates 

 at the baseo A spillway is located at one end of the structure. 

 No fishways are provided and the dam is a total barrier to fish. The 

 reservoir is used to provide sufficient water for irrigation diversions 

 on the West Fork and the main Weiser River above Crane Creek during 

 July, August, and September, Practically the entire discharge from 

 the reservoir is thus diverted during the irrigation seasons Although 

 there are no water diversions on Lost Creek itself, it is of no present 

 or potential value to salmon because the flow is used for irrigation 

 during the summer and impounded during the winter, 



2V« Warm Spring Creek , — (Not surveyed,) Warm Spring Creek 

 enters the Weiser River approxjjnately 6U miles above the mouth. It 

 is a small stream, about 7 xiles long. 



There is an impassable dam below Starkey Hot Springs, about 

 1 mile above the mouth. The stream is of no value to salmon, 



2Wo East Fork, Weiser River a — (Not surveyed,) The East Fork 

 enters the Weiser River approximately 68| miles above the mouth , 

 The stream is about lii miles long, Gaging-station records are not 

 complete, but readings for the year I9UI (U.S.G.S,, 19it2), taken at 

 a point about 12 miles above the mouth, show discharges ranging 

 from a minimum of 0,5 c.f.s, in April to a maxiraum of U5 c,f,So in 

 May, There is probably no flow at times dxiring the winter. There 

 were two irrigation diversions on the stream. Most of the water in 

 the upper part was being used for irrigation in the vicinity of 

 Council, The East Fork was reported to have formerly supported runs 

 of Chinook salmon and steelhead. It is of no present value to 

 salmon because of the withdrawal of water for iirigation, 



2X, Beaver Creek , — (Not surveyed,) Beaver Creek enters the 

 Weiser River approximately 7U miles above the mouth. It is a small 

 streaun, about 7 miles long. There were no reports of salmon enter- 

 ing Beaver Creek, and it is of little value to migratory fish, 



21, East Branch, Weiser River ,— (Not surveyed,) The East 

 Branch enters the head of the Weiser River at a point approximately 

 82 miles above the mouth. It is a small stream, about 7 miles long. 

 During the irrigation season some water is diverted from Boulder 

 Creek in the Little Salmon River system and c arried into the East 

 Branch of the Weiser, There were no reports of salmon entering the 

 East Branch, and it is of little value to migratory fish, 



2Z, West Branch, Weiser River a-^ (Not surveyed,) The West 

 Branch joins the East Branch to form the main Weiser River at a 

 point approximately 82 miles above the moutti of the latter. It is 



U2 



