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Clark Fork River Fishing Report | July 28, 2025

Report by Capt. Ryan Stultz
Ryan Stultz runs Bent Fly Fishing in Montana and reports for Catch America.
What is working right now

Clark Fork River fly fishing was lights-out with a strong bite from about 6:40 AM and fish of all sizes all day. Dropper fishing outperformed dries. Run a size 12 black Pat's Rubber Legs as your dropper under a royal or copper chubby, and high-stick to keep a clean drift. The nearby Flathead has slowed in the summer heat, while the Blackfoot is fishing well on ants.

What is biting on the Clark Fork River right now?

Trout, and it was an unbelievable day with fish of all sizes. Guide Ryan Stultz of Bent Fly Fishing reported the bite was good right out of the gate, fishing by about 7 AM. Dropper fishing was clearly outproducing the dry fly, though fish ate both.

What flies are working on the Clark Fork River?

A little black size 12 Pat's Rubber Legs as the dropper was the ticket. Pair it with a royal or copper chubby on top for bonus surface looks. These are standard fly patterns, not Catch America products, so we name them without a shop link.

How should you present flies on the Clark Fork?

Focus on high-sticking. Keep your fly line up and out of the water to get a clean, drag-free drift and solid hook sets. Ryan taught this to a first-timer and it put great fish in the net, so it works even if you are new to fly fishing.

How is the nearby Flathead River fishing?

Tougher, as summer heat sets in and pressured westslope cutthroat are less willing to rise. Ryan suggests going small and technical with a size 16 epoxy ant or a purple dubbing ant behind a hopper, and adding a mid-depth dropper like a small PT jig in the mornings.

How is the Blackfoot River fishing?

Well. Low water is keeping crowds down and the fish are still eating, with solid dry fly action on ants and caddis. Throw a size 16 epoxy ant alongside a corn-fed caddis. Be ready to drag your raft in spots, but the low pressure is worth it.

Watch the full report

From the report (Capt. Ryan Stultz): Right out of the gate, the fishing was good. Definitely way more on the dropper than the dry fly. A little black size 12 Pat's Rubber Legs. We taught Max a little bit about high-sticking that day, keeping that line up high out of the water, and getting a good drift, and just setting the hook into some great fish.

Clark Fork River July 28, 2025 FAQ

What is the best fly on the Clark Fork River right now?

A size 12 black Pat's Rubber Legs dropper, paired with a royal or copper chubby on top.

Are dries or droppers better on the Clark Fork?

Droppers clearly outfished dries, though fish were active on both.

What is the best technique for beginners here?

High-sticking, keeping the line up out of the water for a clean drift and solid hook sets.

How is the Flathead River fishing?

Slower with summer heat. Go small with a size 16 epoxy ant or purple dubbing ant behind a hopper.

How is the Blackfoot River fishing?

Good, with solid dry fly action on ants and caddis and fewer crowds due to low water.

Who is the guide for this report?

Ryan Stultz of Bent Fly Fishing in Montana.

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