Illustration on page 5 by Tom Prochaska. / 



Time line illustrations by Joan Barbour. 



All graphs by Stephen Sasser. 



Illustration on page 13 by Nicola Yarbrough. 



Illustrations and map on pages 14 and 15 by Stephen Hayes. 



Map on page 27 by Jerry Kruger. 



Illustrations on pages 31 and 37 by Lyn Nance. 



Photograph on the cover is copyright to Larry N. Olson. 



Photograph on page 10 (hydropower) by the U.S. Army Corps of Engineers. 



Photograph on page 10 (navigation) by Brix Maritime. 



Photograph on page 10 (agriculture) and 22 (seasonal power exhanges, storage) by the 



Bonneville Power Adminstration. 

 Photograph on page 10 (recreation) by Portland Water Spectacular/Gary Graham. 

 Photographs on page 20 (control predators), 22 (drawdown) and 28 by Oregon Department of 



Fish and Wildlife. 

 Photograph on page 22 (water conservation) by Carlotta Collette. 

 Photographs on pages 10 (fishing, industry) and 20 (flows, screens and bypass, minimum operation 



pools, transportation, spill) are Northwest Power Planning Council file photographs. 



Editors: Carlotta Collette and John Harrison 

 Art Director and production: Stephen Sasser 

 Production assistant: Tamara Nester 



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