Silver Creek is a very technical fishery, and getting your flies for the fall correct is key, here are Sean Sullivan’s recommendations for Wood River Valley…
The Blue Winged Olive hatch is no different. Downstream presentation combined with a 15 foot 6x leader drifting dry flies to fish podded up sipping tiny flies. Combine these flies and a great presentation. Extreme emerger and Lexi’s Get’er Dun/spinner May BWO. For the sub surface game I use the SR Spanish Bullet in olive and the Skinny Olive Nymph.
Mahogany duns also make an appearance in the fall and can be a game changer. So have a few of Fulling Mill’s CDC Comparadun Mahogany and the Angel Wing Spinner. I like to have a small pair of trimming tools to thin out and round the down winged pattern.
With the cooling temperatures, you can also fish an October Caddis. My fly pattern of choice is the Brown High Rider CDC Caddis.
But if you like streamers it’s a great time to get the “tug” going from a very aggressive brown trout. My streamers of choice are the Schmidt’s Junk Yard Dog in olive and the Drunk & Disorderly orange/olive.
The Bigwood River and the Big Lost River I usually stick with the same fly pattern recipe for success.
The last Big Bug for the season is the Red Quill, they are a must-have pattern in your fly box. The outrigger emerger Red Quill and Lexi’s get ‘er dun/spinner Red Quill will always put fish in the net. You can also have some prolific BWO hatches so be prepared and have Lexi’s get’er dun May BWO pattern. If you are fishing north of Ketchum have a few Brown High Rider CDC Caddis if you see any October Caddis around.
The Bigwood River also has some great Brown trout so my streamer game remains the same patterns as what I use on Silvercreek.
Enjoy the fall fishing in Sun Valley!!