
Utah · freestone
8 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 | ||||||||||||
| Ant (Terrestrial) | ||||||||||||
| Grasshopper (Terrestrial) |
Hatch-chart nymphs, dries, and streamers for this river. Not a crowdsourced catch report.
Open the Lost Creek fly list →1 listed points. Map is Vellum land and Teal water — a desk chart, not a satellite.
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USGS gauge site Lost Creek below Lost Creek Reservoir, UT, marking the dam and reservoir boundary. Official NWIS: 41.1829993, -111.40242. The fished reach is upstream of this point; no live gauge currently monitors the above-reservoir canyon directly.
Utah fishing license required. Verify current Utah Division of Wildlife Resources regulations for Lost Creek above the reservoir before fishing. Much of the canyon is a mix of state and private land; respect posted property and check current access maps.
Verify with Utah Division of Wildlife Resources. Retrieved 2026-08-31. Seasons and gear rules change.
Lost Creek runs through a narrow canyon in Morgan County above Lost Creek Reservoir, a Utah Division of Wildlife Resources managed stream feeding one of northern Utah's smaller trout reservoirs. The canyon above the reservoir holds brown and rainbow trout in tight freestone water.
Access follows the Lost Creek canyon road upstream from the reservoir; much of the drainage is a mix of state and private land, so check current landowner and Division of Wildlife Resources access maps before fishing.
No USGS gauge currently monitors the reach directly above the reservoir; the nearest live reference point sits just below the dam.

Freestone
Brown Trout · Rainbow Trout

Freestone
Brown Trout · Rainbow Trout

Freestone
Brown Trout · Rainbow Trout

Freestone
Brown Trout · Rainbow Trout

Freestone
Brown Trout · Rainbow Trout

Freestone
Brown Trout · Rainbow Trout
If something here is thin or wrong, add what you know. It goes to review before it publishes.
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