The early stream survejr findings in this area undoubtedly prompted 

 much of the screeninr programs that have been undertaken in the past 

 10 years o The Grand Coulee Fish-Maintenance Program (Fish and Hanavan, 

 1949) showed that the area can be utilizedo It therefore would appear 

 that — -if the next few years show that additional fish losses at MoNary 

 Dam are not too excessive--the fishery resources of this area should 

 be considered as one of the several important economic factors in any 

 plan for the complete development of the entire areas 



Unless otherwise indicated, all field data presented were obtained 

 on the dates given for each accounto All temperatures are listed in 

 degrees Farenheito Due to the fact that there have been one or often 

 several chanp;es in ownership for many of the farms and smaller irrigation 

 ditches, it is impossible to bring the change of names for all ditc;iips up 

 to date, but in many cases the original names and common names are still 

 in use, and these were secured by the stream survey parties in the fieldo 



Members of the stream survey parties who made observations on which 

 the following account is based, and the dates on v/hich the surveys were 

 mad© are given in cormection with the treatment of each stream,, For 

 convenience there is given here a complete list of all of these men 

 who were engaged in the survey of Area III; Co Ho Baltzoj C. Jo Do 

 Brown? Ro Eo Burrows s Fo Go Bryant^ Lo Ro Christyj Lo Eo Fultonj 

 Ho Ao Gangmarki Mo Go Hanavanj Fo Wo Jobes j Lo No Kolioen; Mo Co Lobell? 

 Mo Ko Mortonj Zo E«. Parkhurstj Ro Wo Petersoni R. Fo Shumanj A. Jo Suomelaj 

 and R« To Ifhiteleathero Information on certain stream conditions were also 

 furnished by Ro J. Holcomb, Ko G. Weber and G, A. Holland, formerly field- 

 men on the Yakima River systemj Mto A. Ao Gentry, Fisheries Management 

 Technician at the Leavenworth Stationj and Po A. Zimmer, formerly field 

 biologist of the Grand Coulee Fish Salvage Projecto Mr. A. Wo Haslam, 

 formerly Fish Screen Supervisor of the Vfashington State Fisheries Depart^ 

 ment who assisted the author in rechecking the diversions and screens of 

 the Yakima River system in 1944 also furnished certain observations o 



COLIMBIA RIVER STRFAM SURVEY 



PART 1 



Area III, Exclusive of Sub-Areas 



Introduction 



There are few tributaries of any size in Area III other than the 

 five major streams which are covered in the Sub=Area reports. A 

 single exception is the Chelan River which is too steep for fish to 

 ascend for any distanceo The feason for the lack of streams in this 

 area is, of course, the small amount of precipitation in the Colimbia 

 Plateau east of the Cascade Range o 



