Lost Creek Reservoir
UT · Morgan
- Stocked
- 360 acres mapped (USGS NHD)
- 8.6 miles of shoreline
- USGS gauge
The pin marks the middle of the water, for directions. The shoreline on the map comes from USGS NHD.
At a glance
- Acres
- 360 acres
- Shoreline
- 8.6 miles of shoreline
- County
- Morgan County
- Last stocked
- June 24, 2026
- Species
- Splake, Tiger Trout, Rainbow Trout, RAINBOW, Cutthroat Trout, CUTTHROAT, Kokanee
Conditions
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Overview
Lost Creek Reservoir is a quiet, wakeless reservoir in Morgan County, about 10 miles northeast of Croydon, reached by road from the Croydon exit of Interstate 84. The Legislature designated it Lost Creek State Park in 2021, and the park is still being built out. For now it has vault toilets, a primitive campground and a boat ramp, and construction that began in 2025 can close some areas. The Utah Division of Wildlife Resources lists it as a Blue Ribbon fishery. Rainbow trout, Bonneville cutthroat trout and splake are common, and kokanee salmon, tiger trout and wiper may also be caught. DWR says trout fishing is usually best in mid to deep water in summer and in shallow to mid depths in fall. From shore, anglers fish dough bait or worms for rainbows and cast sinking flies, jigs, spinners and crankbaits for cutthroat, tiger trout and splake. Boat anglers troll crankbaits, pop gear or a squid and dodger. Kokanee hold offshore in deep water in summer, where downriggers or leadcore help.
Regulations
Lost Creek has a trout slot limit, kokanee count toward the combined trout limit, and trout and salmon may not be filleted or have heads or tails removed in the field. The creek above the reservoir is catch and release with artificial flies and lures only. See the current Utah Fishing Guidebook: https://wildlife.utah.gov/guidebooks/fishing_guidebook.pdf
Stocking history
| Species | Qty | Size | When |
|---|---|---|---|
| Splake | 3527 | 2.71 | 06-24-2026 |
| Tiger Trout | 499 | 9.75 | 06-17-2026 |
| Rainbow Trout | 427 | 11.73 | 05-19-2026 |
| RAINBOW | 427 | 11.73 | 05-19-2026 |
| Rainbow Trout | 1395 | 11.73 | 05-18-2026 |
| RAINBOW | 1395 | 11.73 | 05-18-2026 |
| Tiger Trout | 2744 | 9.26 | 05-11-2026 |
| Cutthroat Trout | 13645 | 10.03 | 04-27-2026 |
| CUTTHROAT | 13645 | 10.03 | 04-27-2026 |
| Kokanee | 22554 | 2.95 | 04-22-2026 |
Gear for the fish stocked here
Splake
Rod: Light spinning or spincast rod, as for brook trout in ponds.
Line: Light line, about 4 to 6 lb.
Baits: worms, small baits on ice jigs
Lures: spinners tipped with worms, small spoons, dark nymphs and woolly buggers
Tiger Trout
Rod: Standard light trout spinning rod, about 4.5 to 8.5 feet.
Line: 4 to 8 lb mono. Lean toward the heavy end: tiger trout eat other fish and can reach 20 inches in good waters.
Baits: bait where legal
Lures: minnow-imitating plugs, spoons, spinners
Rainbow Trout
Rod: Light or ultralight spinning rod, about 4.5 to 8.5 feet; 5 to 6.5 feet suits stocked ponds.
Line: 4 to 10 lb monofilament, with 6 to 8 lb a good middle. Go lighter in clear water.
Baits: worms or cut nightcrawlers, salmon eggs, kernel corn
Lures: small inline spinners, small spoons, curly tail jigs and grubs
Likely species (watershed)
Bluehead Sucker, Brown Trout, Longnose Dace, Mottled Sculpin, Mountain Sucker, Redside Shiner, Speckled Dace
Likely species come from USGS Aquatic GAP ranges for the whole watershed (HUC8). They show what may be here, not a count of this water.
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More in Morgan
Utah Division of Wildlife Resources; Utah State Parks
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Some stocking records are adapted from LurePassion (formerly lurepassion.com) (normalized and matched to our waters), licensed CC BY 4.0. State agencies retain their own terms for the underlying records.