Troutline

Wyoming

Live fishing conditions for 3 rivers and creeks.

Wyoming fly fishing has three distinct centers: Jackson Hole's Snake River for fine-spotted cutthroat, the North Platte tailwaters near Casper for big rainbows and browns, and Yellowstone National Park's Firehole and sister rivers for a uniquely thermal-influenced fishery. Each region asks different things — different timing, different flies, different access. There's enough variety here to plan a week without repeating water.

The Jackson area runs cutthroat-dominated and float-friendly, with consistent flows from Jackson Lake releases through summer. The North Platte's Grey Reef and Miracle Mile sections fish big year-round, with sow bugs and scuds as the staple food and large fish that respond to it. The Firehole is unusual — geothermally heated water keeps it fishable when other Yellowstone rivers are too cold for trout, and the dry-fly fishing during low summer flows is technical and rewarding if you put in the time.

3rivers3regions6fly shops2snowpack basins tracked

Snowpack & runoff

Full Wyoming snowpack report
By basin

Updated May 17, 2026.

Jackson Hole

Snake River and headwater drainages — float-friendly water for Snake River fine-spotted cutthroat trout, primarily summer through fall.

Snake RiverWY

75 miles of Snake River Finespotted Cutthroat water from Jackson Lake Dam through Grand Teton National Park and Jackson Hole to Palisades Reservoir — the home water of a subspecies found almost nowhere else, fished primarily by drift boat on big attractor dries and terrestrials July through October.

North Platte Basin

Big tailwater rivers near Casper — Grey Reef, Miracle Mile, Fremont Canyon. Year-round fishing for large rainbows and browns.

North Platte RiverWY

Central Wyoming's string of dam-controlled tailwaters — Miracle Mile, Fremont Canyon, and the Blue Ribbon Grey Reef — supports more than 8,000 wild rainbow trout per mile in the upper Grey Reef reach. Year-round sow bug, scud, midge, and BWO fishing with brown trout streamer windows in fall and spring.

Yellowstone National Park

Wyoming's slice of the park — the Firehole, the Madison, the Gibbon. Geothermal influence; technical dry-fly water in shoulder seasons.

Firehole RiverWY

The most unusual trout stream in the Lower 48 — a geyser-fed meadow river inside Yellowstone NP with vast White Miller caddis hatches, PMD and BWO windows, and a short fishing season (late May through early July, then September to early November) bracketing a summer that's too warm to fish.

Fly shops in Wyoming

Brick-and-mortar shops we have on file. A good first stop for current conditions, flies that are working locally, and shuttle services on the bigger floats.

Casper
Jackson
Moose
Wilson