By late summer, some of the most exciting fly fishing in Montana happens with a big piece of foam tied to the end of your leader. Grasshoppers, ants, beetles, and other terrestrial insects become an important food source for trout, and few things are more exciting than watching a good fish rise and crush a hopper.
Guide's Tip: Successful terrestrial fishing isn't simply about tying on a big dry fly. Presentation, leader selection, and reading the water are what consistently turn follows into eats.
Choosing the Right Leader
Hopper fishing generally calls for a shorter, heavier leader than you might use during a PMD or Baetis hatch. A 7½ to 9-foot leader ending in 2X, 3X, or 4X tippet is an excellent starting point.
The heavier tippet serves two important purposes. Large foam flies create considerable wind resistance, and heavier material helps turn the fly over during the cast. It also gives you the strength needed when larger trout dive into heavy current, submerged structure, or make aggressive runs.
For larger hopper patterns or hopper-dropper rigs, we often fish 2X or 3X. When trout become selective in especially clear water, dropping to 4X can provide a more natural presentation.
Choosing a Hopper Pattern
Modern fly shops offer an incredible variety of hopper patterns. Foam flies have become especially popular because they float exceptionally well and can easily support a weighted dropper.
Reliable Hopper Patterns
- Morrish Hopper
- Chubby Chernobyl
- Thunder Thighs
- Parachute Hopper
- Water Walker
- Foam Hopper Variations
Don't hesitate to experiment with both size and color. Tan, yellow, olive, peach, and even pink can all produce fish. Sometimes trout want a large, obvious meal. Other days, simply downsizing from a size 8 to a size 12 hopper can completely change the outcome.
Fish the Banks—but Not Only the Banks
The classic hopper cast lands tight against grassy banks, beneath overhanging willows, or beside structure where terrestrial insects naturally fall into the river.
But trout don't always sit six inches from shore.
Don't overlook drop-offs, seams, mid-river shelves, gravel bars, or slower water adjacent to faster currents. Wind often scatters terrestrials throughout the river, and trout frequently position well away from the bank.
Give the Fly Some Life
A dead drift is usually the best place to begin, but occasionally giving your hopper a small twitch or subtle skate can trigger an aggressive strike.
You're trying to imitate a struggling insect—not a water skier.
Let the fly land with a noticeable "splat," allow it to drift naturally, and occasionally move it just enough to suggest life.
One final tip: don't set the hook too quickly. Hopper eats are often explosive. Give the trout a brief moment to close its mouth before making a firm strip set or lifting the rod.
Why We Love Hopper Season
Terrestrial fishing combines visual takes, aggressive trout, simple flies, and some of the most beautiful days of the year in Southwest Montana. Watching a trout leave its holding lie to inhale a hopper is one of fly fishing's greatest thrills—and one of the reasons late-summer hopper season remains one of our favorite times to guide.
