The Central Oregon Irrigation Canal diverts from 350 to I4.OO c.f.s, 

 about midway between Bend ajid Lava Island Falls, These falls are actually 

 a series of cascades having a total drop of about 100 feet in a distance 

 of about 1 mile, and in no way constitute a barrier. The Arnold Canal, 

 diverting from oO to JO c«f aS* takes off immediately above Lava Island 

 falls. Billion falls, located about 2^ miles above Lava Island falls, is 

 another series of cascades and falls with a total drop of about 65 feet 

 in a distance of 0,3 of a mile, and is not a total barrier. Benham falls 

 likewise is a series of cascades and low falls dropping about 95 feet in 

 a distance of about l/2 mile, and is not a serious barrier. 



No suitable spawning areas were observed in -Oais section. From 

 the North Canal dam to Dillon falls bottom material is mainly bedrock eind 

 boulders, and from Dillon falls upstream to Benham falls sand and mud 

 predominate. 



Section Lj.: This is a quiet water section, almost slough-like in 

 character. Bottom materials are mainly mud and sand, and no suitable 

 spawning areas were observed. There are no obstructions or diversions. 

 Pringle falls, forming the upper boundary of this section, is a series of 

 cascades dropping about 25 feet in a distance of about l/2 mile, and in 

 no way constitutes a barrier to fish. This section is of no value to 

 salmon. 



Section 5^ The stream increases in gradient above Tringle falls, 

 and in this section occurs the only large suitable spawning areas found in 

 the ?nain Deschutes River. It is inaccessible to salmon however, because 

 of the obstructions in Section 2 as well as the impassable Wickiup dam, 

 90 feet in height, located about 8 miles above Pringle falls. During the 

 filling period of late fall and winter at the Wickiup reservoir the small 

 amoxmt of water permitted to pass the dam further limits the fisheries 

 value of the stream section below to the confluence of the Little Deschutes 

 River, Crane Prairie dam, 35 feet high and situated about 12 miles above 

 Wickiup dam is also impassable. No improvements appear justified and this 

 section must be considered as having no value to salmon. 



lA. Buck Hollow Creek . — (jime 19, 191(2; Frey,) Enters the Deschutes 

 River about i mile below Sherar falls. This is a small stream flowing about 

 U c,f,s. at the time of survey and reported to go completely dry in late 

 sunnier. It is of no value to salmon. 



IB, White River .— (jime 19, 19^42; Frey.) Enters the Deschutes River 

 about 2.!? mlies above Sherar falls. The stream has a length of about 50 

 miles, but it is blocked by a series of three falls totaling 180 feet in 

 heighr about 2g miles above the mouth. These falls are surmounted by a 

 power dam 6 feet high used to divert water to the Pacific Power and Light 

 Company plant located in the gorge below the falls. In the 2z mile section 

 below the falls bottom materials are largely bedrock and sand, and suitable 

 spawning areas are almost entirely lacking, A few chinook salmon enter 

 this section of stream each year. However, it is only of slight value as 

 a salmon producer. 



