Knack....the "Yakutat" river you are thinking about is the Situk. It is Alaska's best spring steelhead river. We have been fishing it for 24 straight years now, usually for fall fish (silvers), but a few times for spring steelhead as well. If you hit the steelies right you will catch 10-30 fish a day. One keeper over 36 inches is allowed. FJ....let me know if you have any specific questions.....maybe I can help, or can put you in touch with my son who has guided on the Situk.