27. Wind Ri\ 



28. Lindaey Creek 



29. 



30. 



32. 



Little White 

 Salmon River 



Hood River 



Klickitat 

 River 



John Day 

 River 



34CI. Wenaha River 



34C2. Wallowa River 



34C2A. Minam River 



6 



29 



1S2 



364 



72 



255 

 259 



271 



288 



333 



72 



130 



16 



mouth blocked runs. 



Middle portion and Lower 2.4 km. 



tributaries. flooded by 



Bonneville pool. 



Lower 0.4 km. 



About 0.8 km. of 

 spawning below 

 hatchery rack. 



Sections of main 

 Klickitat and 

 West Fork. 



Lower portion. 



Upper section. 



None known. 



Same as present. 



Lower 0.8 km. in- 

 undated by 

 Bonneville pool. 



Section of main Unknown. 



Hood R., East and 

 West Forks, and 

 Neal Cr. 



Species introduced. 



Small section of Unknown. 



Middle Fork. 



Location unknown. 



Unknown. 



None. 



Location unknown. 



Location unknown. 

 Lower section. 

 Upper portion. 



Probably some 

 reduction. 



Lower half. 



Little, if any, natural spawning, as 

 Bonneville Hatchery (O.F.C.) intercepts 

 run for hatchery rearing. Stream enters 

 Columbia R. just below Bonneville 

 Dam. 



Run mostly supported by Cascade Hatch- 

 ery of O.F.C; in some years no fish 

 are allowed upstream of the hatchery 

 rack or water supply control structure. 



Falls blocks migration about 1 .6 km. 

 above mouth. 



Oxbow Hatchery (OF C.) supports run. 

 Almost all water is diverted from stream 

 through hatchery holding ponds. 



Area flooded by Bonneville pool was 

 most of original spawning area. Not 

 known to what extent salmon used this 

 area but apparently coho did not use 

 it before Shipperd Falls was made pass- 

 able in 1955; coho salmon then intro- 

 duced into system. Carson National Fish 

 Hatchery annually rears part of run. 



Small 

 use i 



stream; has moderate to heavy 

 1 available portion below falls. 



Nearly all coho salmon handled at Little 

 White Salmon National Fish Hatchery. 

 Series of falls above hatchery rack im- 

 passable to salmon. 



Powerdale Dam impedes migration, but 

 small run of coho salmon spawns above. 

 Extent of former run unknown; most 

 use in Neal Cr. 



Good-sized runs handled at Klickitat 

 Hatchery (W.D.F.). Probably no na- 

 tive run of species due to difficult pass- 

 age at several falls. 



Middle Fork John Day, tributary to 

 North Fork, extends for 86 km. Gold 

 dredging stopped by early 1940's; silt 

 carried away by stream in some loca- 

 tions; small run reported by O.F.C. in 

 1961. 



No record of former run, but probability 

 good. 



Former run eliminated primarily by ir- 

 rigation practices many years ago. 



Main Snake R. used for passageway. 



Last run reported in 1929. 



Little known of location of spawning, 

 but reported to have had run many 

 years ago. Suspected areas shown on 

 map. 



Coho salmon found spawning in main 

 stem in 1940 by U.SF.W.S. No evi- 

 dence in 1958, but possibility of a few 

 not ruled out. 



29 



23. 29 



1, 35 



23. 29 

 1, 35 



23. 29 



1. 38 



20. 22 



21, 26 



26, 33 



Exact location of former spawning area 26, 33 

 not determined, but coho salmon reported 

 as still using Wenaha in 1940. None 

 seen in 1957-59, but some adults seen 

 in 1964. 



Surveys by Oregon Fish and Game Com- 26, 33 

 missions revealed spawning fish and 

 redds in area indicated on map. Former 

 large runs believed to have been de- 

 pleted, but now partially restored. 



Reported to have supported run. Re- 26, 33 

 moval of old dam and blasting of Minam 

 Falls improved accessibility to upstream 

 areas. 



Seo footnotes at end of table. 



18 



