UNITED STATES DEPARTMENT OF COMMERCE 



Maurice H. Stans, Secreiary 



NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION 



NATIONAL MARINE FISHERIES SERVICE 

 Philip M. Roedel, Direcfor 



Spawning Areas and Abundance of Steelhead Trout 



and Coho, Sockeye, and Chum Salmon in the 



Columbia River Basin -Past and Present 



By 

 LEONARD A. FULTON 



Special Scientific Report — Fisheries No. 618 



Washington, D.C. 

 December 1970 



