Montana Fish Report
Henrys Fork Upper Fishing Report

by Mike Lawson
6-20-2025
208-558-7525
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They’ve let more water out of Island Park Reservoir this week and the increased flows have been a welcomed sight during the Harriman Ranch Opener! Box Canyon is at approximately 937 CFS which is a significant increase from last week. The Brown and Green Drakes have arrived and we are still seeing Golden Stones fluttering about with Caddis hatches in the evening. It’s a good idea to have a variety of small dry flies in your box this time of year. For Drakes try a Lawsons Extended Body or Last Chance Cripple as well as the Hudgens Drake Spinner later in the evening. During a Caddis hatch I’d reach for a Missing Link, EZ Caddis, or Mathew’s X Caddis and try a double dry with a Lawsons Caddis Emerger or Rusty Spinner as the dropper. If you’re fishing in the Box, the tried and true dry dropper rig is always a good idea. Try a Gold Chubby or Henry’s Fork Foam Stone Golden with a nymph dropper such as a Pat’s Rubber Legs, Pheasant Tail, or Duracell.