
Wyoming · freestone
25 miles
October on the hatch chart — names and sizes, not a catch report.
Filled months are when that insect is on the chart. Best months for this river are lit.
Swipe months to stay on the year
| Insect | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Midge (Chironomidae) | ||||||||||||
| Blue-winged Olive | ||||||||||||
| Runoff (high, off-color water) | ||||||||||||
| Caddis | ||||||||||||
| Pale Morning Dun | ||||||||||||
| Grasshopper (Terrestrial) | ||||||||||||
| Ant (Terrestrial) |
Hatch-chart nymphs, dries, and streamers for this river. Not a crowdsourced catch report.
Open the Middle Fork Powder River fly list →2 listed points. Map is Vellum land and Teal water — a desk chart, not a satellite.
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Live USGS gauge Middle Fork Powder River above Kaycee, WY. Official NWIS: 43.6474683, -106.8086642.
Live USGS gauge Middle Fork Powder River at Kaycee, WY. Official NWIS: 43.7083333, -106.6388889. Near the town of Kaycee.
Wyoming fishing license required. Wyoming Game and Fish Department blue ribbon trout stream designation. Much of the surrounding land is private; verify current public access and Access Yes area maps before fishing. Verify current WGFD regulations for the Powder River drainage.
Verify with Wyoming Game and Fish. Retrieved 2026-08-31. Seasons and gear rules change.
The Middle Fork Powder River drops out of the Bighorn Mountains and cuts through red-rock high desert country near Kaycee, in the Hole-in-the-Wall outlaw country made famous by Butch Cassidy. Wyoming Game and Fish Department manages this stretch as blue ribbon trout water.
Brown trout and rainbows hold in deep pools and undercut banks along this remote freestone stream. Access is limited and mostly through BLM and private land with public fishing easements; check current landowner access maps before you go, since much of the surrounding ranchland is private. USGS gauges near Kaycee and upstream at Barnum track flow through the canyon.
This is a lightly pressured stream by Wyoming standards, in part because of the access limitations. Summer flows drop enough for good wade fishing by July.

Tailwater
Brown Trout · Rainbow Trout · Mountain Whitefish

Freestone
Brown Trout · Rainbow Trout · Brook Trout

Freestone
Brown Trout · Rainbow Trout · Brook Trout

Freestone
Yellowstone Cutthroat Trout · Brown Trout · Brook Trout

Freestone
Snake River Cutthroat Trout · Rainbow Trout · Brown Trout

Freestone
Snake River Cutthroat Trout · Brook Trout
If something here is thin or wrong, add what you know. It goes to review before it publishes.
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