Ask ten fly fishermen what’s in their box and you’ll get ten different arguments. But when a working Montana outfitter — someone who has to put clients on fish day after day, river after river — narrows it down to just three flies he refuses to leave home without, that’s worth paying attention to. Tim Cammisa recently broke it all down on his YouTube channel, and whether you’re a seasoned local or planning your first float on the Missouri or the Bighorn, his reasoning is hard to argue with.
Why Confidence Flies Matter More Than a Full Box
What makes Cammisa’s approach relevant for Montana anglers specifically is the context behind the choices. August on a Montana river is a different animal than April. Runoff is done, flows are lower and cleaner, and educated trout on heavily pressured tailwaters like the Bighorn or the upper Madison have seen every flashy streamer and bloated hopper pattern in the bin. That’s exactly when confidence flies — patterns you trust enough to fish hard and fish correctly — separate the people catching fish from the people changing flies every ten minutes.
His three picks lean into that reality. A slim, well-proportioned Parachute Adams in sizes 16 to 18 covers a lot of surface-feeding situations on rivers like Rock Creek or the upper Clark Fork, where selective browns and cutthroats are keying on smaller mayflies through midsummer. It’s not glamorous, but it floats well, lands soft, and reads natural in flat, gin-clear water where anything overdressed gets refused. If you’re not carrying it in multiple sizes, you’re leaving fish on the table.
The second pattern — a Pheasant Tail Nymph, again in smaller sizes — is the kind of fly that feels almost too simple until you’re watching your indicator dip on the Missouri River and wondering why you ever second-guessed it. Baetis nymphs are everywhere in Montana’s blue-ribbon waters, and a lightly weighted PT drifted through seams behind midchannel boulders or along undercut banks is as close to a sure thing as this sport offers. Cammisa fishes it on a longer tippet than most beginners would think to use — typically 5X to 6X fluorocarbon — which matters on tailwaters where fish have time to inspect.
The third selection is a CDC Caddis Emerger, which earns its spot during the heavy caddis hatches that define summer evenings on rivers like the Gallatin and the Beaverhead. When fish are sipping in the film and ignoring elk hair caddis dead-drifted on top, an emerger pattern fished just subsurface or in the meniscus will frequently turn the whole outing around. It’s one of those flies that looks almost unfinished in your hand but does exactly the right thing in the water.
A Few Montana-Specific Reminders Before You Go
If you’re heading out this summer, keep Montana’s current regulations in mind depending on where you’re wading or floating. Some stretches of blue-ribbon water — portions of the Yellowstone, Rock Creek, and certain Missouri River tributaries — carry specific gear restrictions or catch-and-release requirements that vary by drainage. FWP also implements mid-season closures on certain rivers to protect fish during low-flow, high-temperature periods, and those can change year to year. Always pull up FWP’s current fishing regulations before you go rather than relying on what was legal last season.
Public access is another thing worth confirming ahead of time. Montana’s stream access law gives anglers the right to wade within the high-water mark on most rivers, but parking and entry points vary — especially on stretches that run through private ranch land. Check onX or the FWP access guide for the specific drainage you’re fishing so you’re not trespassing trying to reach good water.
The Bigger Takeaway
The broader lesson from Cammisa’s approach is something experienced Montana anglers already know but beginners often ignore: fly selection is only part of the equation. Presentation, reading water, and fishing a pattern with genuine confidence account for far more than the difference between a size 16 and a size 18. That said, having a short, proven list beats paralysis by analysis every time you’re standing knee-deep trying to make a decision. Cammisa is also offering to send his full list of confidence nymphs via email for anglers who want to dig deeper into his subsurface game — worth grabbing if you’re serious about tightening up your nymph rig before the next trip out.
Montana's outdoor week, in your inbox at 7am Friday.