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252-acre reservoir in Washington County, Utah. The lake tops out around 46 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. What follows comes from the same scoring engine that paints the spots above.
Shoreline on the chart totals 4.9 miles. The 2.6 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The shallow band under 15 ft claims about 56% of the surface on the model — that's where the groceries are. End to end it runs roughly 1.4 mi, about 0.6 mi across. The water lies in Washington County. For a second option, Baker Reservoir lies 11 mi northeast.
The spring pattern is a shallow one: crappie in 2 to 8 ft. As the season builds they drop to 10 to 25 ft, wintering in 15 to 35 ft. Top water on the chart: Old creek channel, a creek channel in the 23 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a jig trolled/spider-rigged or a small crankbait (trolled) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Old creek channel (23 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Old creek channel (23 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Old creek channel (23 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Spring puts bluegill in skinny water — 1 to 6 ft is the zone. As the season builds they drop to 4 to 15 ft, wintering in 10 to 25 ft. Spring bluegill concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Warm-month bites cluster around early morning and the evening. A small sponge spider (fly) or a micro tube jig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (6 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (6 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Break off the point (21 ft) | Tiny spoon |
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 6 ft of water that rates prime for largemouth bass in spring. Warm-month bites cluster around early morning and the evening. Throw a texas-rigged 10" worm or a deep-diving crankbait until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (6 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (21 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (12 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (21 ft) | Blade bait, Jigging spoon |
Structure-wise the chart holds 8 features, led in depth by Deep basin at roughly 39 ft.
Access data: Utah DNR — Boat Ramps. Confirm conditions and fees locally before you launch.
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 Gunlock Reservoir specifically, so confirm the current rules before you fish.
Check the official Utah fishing regulations →
Gunlock Reservoir is about 46 ft (14 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 crappie, bluegill, largemouth bass on Gunlock Reservoir.
Shallow bay flat is the top-rated area: a weed flat in about 6 ft of water that rates prime for bluegill in spring. The interactive chart above rates every spot for each species and season.
For crappie, 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 Gunlock 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.
Baker Reservoir 11 mi · Enterprise Reservoirs 18 mi · Quail Creek Reservoir 22 mi · Sand Hollow Reservoir 24 mi · Virgin River 27 mi, AZ · Newcastle Reservoir 30 mi · Kolob Reservoir 42 mi · Echo Canyon Reservoir 52 mi, NV · Navajo Lake 57 mi · Eagle Valley Reservoir 57 mi, NV · Yankee Meadow Reservoir 64 mi · Panguitch Lake 70 mi
See how Gunlock Reservoir stacks up: best largemouth bass lakes in Utah · best crappie lakes in Utah · best bluegill lakes in Utah
More water nearby: Washington 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.