Idaho Fish Report

The Fall River is also good, with some afternoon Blue Wing Olives and Midges. The BWO’s will again be matched well with #18-20 flies and at the Fall it may be even more important to show the fish cripples and emergers than the dun’s and do so on 6.5X or 7X tippet.
Midges are matched with small black Century Drive Midges, Winkler’s, Griffiths Gnats and Zebra’s.
I don’t yet have a confirmation of Little Black Stones on the Fall, but February is the time they get going there. A little Black CDC Caddis or X Caddis with the Z Lon tail cut short (or off!) is a good match, and skittering it is often what is the difference maker if they will rise for it or not.
Euro Streamers have been kicking some butt out at the Fall, and Eggs and Perdigons are always good choices out there.