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162-acre reservoir in Emery County, Utah. The lake tops out around 64 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 162 acres of water rimmed by 2.4 miles of bank. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. About 12% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. The basin spans about 1 mi end to end and 0.4 mi across at its widest. You'll find it in Emery County. For a second option, Cleveland Reservoir lies 3 mi north.
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Summer pushes them deeper, 8 to 30 ft, and winter fish settle into 8 to 40 ft. The spot to know is Miller Flat Creek inflow, an inflow / creek mouth in about 6 ft of water that rates prime for rainbow trout in spring. Warm-month bites cluster around early morning and the evening. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Miller Flat Creek inflow (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Miller Flat Creek inflow (6 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (16 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (29 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: brook trout in 2 to 15 ft. As the season builds they drop to 10 to 30 ft, wintering in 3 to 20 ft. Top water on the chart: Miller Flat Creek inflow, an inflow / creek mouth in the 6 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Miller Flat Creek inflow (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (29 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Miller Flat Creek inflow (6 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Miller Flat Creek inflow (6 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring cutthroat trout on Miller Flat Reservoir hold shallow, usually 3 to 15 ft. By summer they slide out to 10 to 35 ft, and by winter most fish are in 10 to 40 ft. The chart's best answer is Miller Flat Creek inflow — inflow / creek mouth, 6 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a trolled spoon (small) or an inline spinner.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | Miller Flat Creek inflow (6 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Break off the point (29 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (16 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Break off the point (29 ft) | Small jigging spoon, Marabou jig |
Miller Flat Reservoir carries 8 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 54 ft down.
Season dates, license requirements, and size and bag limits for Utah waters are set by the Utah Division of Wildlife Resources — and special regulations can apply to Miller Flat Reservoir specifically, so confirm the current rules before you fish.
Check the official Utah fishing regulations →
Miller Flat Reservoir is about 64 ft (20 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target rainbow trout, brook trout, cutthroat trout on Miller Flat Reservoir.
Miller Flat Creek inflow is the top-rated area: an inflow / creek mouth in about 6 ft of water that rates prime for rainbow trout in spring. Scroll up to the map for the complete spot list by species and season.
For rainbow trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Miller Flat Reservoir is regulated by the Utah Division of Wildlife Resources. Check the official Utah regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Cleveland Reservoir 3 mi · Huntington 4 mi · Electric Lake 6 mi · Gooseberry Reservoir 12 mi · Joes Valley Reservoir 17 mi · Scofield Reservoir 18 mi · Huntington North Reservoir 21 mi · Duck Fork Reservoir 28 mi · Ferron Reservoir 29 mi · Millsite Reservoir 30 mi · Palisade Reservoir 32 mi · Nine Mile Reservoir 35 mi
See how Miller Flat Reservoir stacks up: best rainbow trout lakes in Utah · best brook trout lakes in Utah · best cutthroat trout lakes in Utah
More water nearby: Emery County fishing maps (6 charts). Browse all Utah fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.