Idaho Fish Report
Finally seeing some better fishing in the upper river!
by Mike Lawson
9-26-2025
208-558-7525
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With Fall here and cooler evening temperatures, we are finally seeing some better fishing in the upper river. The river is very low and has cleared up. I would recommend wading in the Box Canyon rather than floating it, unless you like to smash your boat all to pieces. The nymphing and streamers have been working. Fish in the deeper pools, as that’s where the fish are forced to be. Small zebra midges in black, olive, and tan sizes 18 and 20. Don’t be afraid to drag a streamer through those pools either. I love a copper zonker size 6, or an olive and copper Lil’ Kim in size 6.
The upper and lower Harriman State Park are finally fishing decent. We are seeing some decent Mahogany Dun hatches. The fish are very spooky with the shallow water, but if you use a long leader, you can get it done. I love the Mahogany No hackle in size 18. I figure if they won’t eat a no-hackle, I’d best sit on the bank and listen to elk bugle.
