It just occurred to me; that you mentioned you'll likely be fly fishing. Stop in at a fly shop in Albany, or Corvallis, and pick up some Borden Specials. Those flies were specifically designed, for blue backs (SRC's) on Alsea. They are so deadly on SRC's, that Mitch @ Two Rivers Fly Shop in Albany, can't tie 'em fast enough sometimes...because people buy them by the DOZEN!