The Stirvey 



Main Columbia River . — (October-November, 1946; Barnaby and Hanavano) 

 The main stem of the Columbia River, within the confines of Area III, is 

 in addition to being a migration route of anadromous fish, a relatively 

 important spawning area, A careful evaluation of the area by the usual 

 methods is not possible owing to the size of the river. However aerial 

 surveys have shown that chinook salmon do utilize suitable gravels 

 throughout the 210 mile reach of the river from the mouth of the Snake 

 River to the confluence of the Okanogan River. It is probable that some 

 spawning also occurs in the main stem of the river downstream from the 

 confluence of the Snake River, but turbid water from the Snake River made 

 observations impossible dtoring the period of the survey. 



1. Rock Creek . 



2. Pine Creek . 



3. Alder Creek . — (April 21, 1937; Hanavan and Lobell.) These 

 creeks are from 20 to 30 miles in length, and were flowing from 15 to 20 

 Cof.s. at the time of the survey. The stream g radients were relatively 

 steep, but there were a few good spawning areas in some sections. They 

 are populated by a few steelhead and native trout. 



4. Yakima River .-- (See Part 2) 



5» Crab Creek. — (inspected June 30, 1937; Baltzo and Jobes.) 

 Crab Creek originates at Big Springs at the foot of a 200 foot ridge south=> 

 east of Ephrata, Washington and flows south for several miles to enter the 

 upper end of Moses Lake. From Mosses Lake it continues south and flows 

 into Goose Lake reservoir. From the reservoir it flows south and west 

 some 50 miles to empty into the Columbia River near Beverly, Washington, 

 approximately 422 miles above the mouth of the Columbia and 30 miles 

 below Rock Island Dam. 



There is another water course originating east of Davenport, Wash- 

 inton and flowing south and west thru a series of small lakes into Crab 

 Lake near Wilson Creek, Washington that is also shown on maps as Crab 

 Creek, but is more commonly referred to as "upper** Crab Creek. Some maps 

 even show drainage from Crab Lake into Soap Lake, which is located 7 miles 

 northeast of Ephrata, and is highly alkaline since it has no outlet. There 

 is no surface connection between this "upper** Crab Creek drainage and tha 

 "lower'* Crab Creek drainage, although many persons believe that undergrooiid 

 seepage from the former probably supplies the springs that feed ''lower'' Crab 

 Creek. 



Moses Lake is 15 miles long, one mile wide and supports a population 

 of carp, bass, suckers, cyprinids and trout. At the time of the inspec= 

 tion, irrigation ditches were allowed to take a total of 40 c.f.s. from 

 upper Crab Creek, 33 c.f.s. from Moses Lake and 144 c.f.s from lower 

 Crab Creek. Three irrigation companies had the right to store excess water 



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