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13,700-acre reservoir near Pine Haven. The lake tops out around 74 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Every species below gets its seasonal read from the same numbers driving the chart.
Shoreline on the chart totals 64.1 miles. The 4.8 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The shallow band under 15 ft claims about 34% of the surface — that's where the groceries are. End to end it runs roughly 8.6 mi, about 5.7 mi across. It sits in Crook County. Upton Centennial 2 sits 22 mi southeast — the closest neighbouring chart.
In spring, walleye run shallow here, mostly 4 to 15 ft. Midsummer fish sit out in 15 to 35 ft before dropping to 20 to 40 ft for winter. Spring walleye concentrate at Creek inflow, a prime-rated inflow / creek mouth around 14 ft. Fish it in the evening and early morning and you'll meet the bite. You won't need more than a crawler harness on bottom bouncer or a deep crankbait (trolled) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Creek inflow (14 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Break off the point (23 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Break off the point (23 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Break off the point (23 ft) | Jigging spoon + minnow head, Rattle bait |
When the water first warms, smallmouth bass slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 20 to 45 ft one. Start at Rock reef. It's a rock pile holding about 11 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a drop shot (goby/minnow) or a ned rig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Rock reef (11 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Rock reef (11 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Break off the point (23 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (23 ft) | Blade bait, Hair jig |
When the water first warms, northern pike slide up into 2 to 8 ft. Summer is an 8 to 20 ft game here, winter a 5 to 15 ft one. Start at Weed flat. It's a weed flat holding about 7 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a bucktail or a weedless spoon over cabbage rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (7 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Weed flat (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Weed flat (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Weed flat (7 ft) | Tip-ups, Large jigging spoon |
When the water first warms, crappie slide up into 2 to 8 ft. Summer is a 10 to 25 ft game here, winter a 15 to 35 ft one. Start at Weed flat. It's a weed flat holding about 7 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a jig trolled/spider-rigged or a small crankbait (trolled) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (7 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (23 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Weed flat (7 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Break off the point (23 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: yellow perch in 3 to 12 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 15 to 35 ft for winter. The spot to know is Weed flat, a weed flat in about 7 ft of water that rates prime for yellow perch in spring. Plan around early morning in the warm months. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Weed flat (7 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (23 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (23 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (23 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Early season freshwater drum use the shallows, holding in 5 to 20 ft. Expect a summer slide to 8 to 30 ft, then a winter hold in 15 to 45 ft. Put Creek inflow first on the milk run — an inflow / creek mouth near 14 ft that grades prime for spring. In summer the feeding windows fall in the evening. Tie on a jig + crawler combo or a small crankbait (slow) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | midday & dawn | Creek inflow (14 ft) | Jig + curly tail (bounced), Small blade bait |
| Summer | 8 to 30 ft | dusk | Break off the point (23 ft) | Jig + crawler combo, Small crankbait (slow) |
| Fall | 10 to 35 ft | midday | Break off the point (23 ft) | Blade bait (vertical), Jigging spoon |
| Winter | 15 to 45 ft | midday | Deep basin (70 ft) | Jigging spoon (slow) |
Keyhole Reservoir also holds channel catfish (8 to 25 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 22 features, led in depth by Deep basin at roughly 70 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Wyoming waters are set by the Wyoming Game and Fish Department — and special regulations can apply to Keyhole Reservoir specifically, so confirm the current rules before you fish.
Check the official Wyoming fishing regulations →
Keyhole Reservoir is about 74 ft (23 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target walleye, smallmouth bass, northern pike, crappie, yellow perch, freshwater drum, channel catfish on Keyhole Reservoir.
Creek inflow is the top-rated area: an inflow / creek mouth in about 14 ft of water that rates prime for walleye in spring. The interactive chart above rates every spot for each species and season.
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Keyhole Reservoir is regulated by the Wyoming Game and Fish Department. Check the official Wyoming regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Upton Centennial 2 22 mi · East Iron Creek Reservoir 24 mi · Black Hills Power and Light Reservoir 34 mi · Lak Reservoir 52 mi · Belle Fourche Reservoir 61 mi, SD · Desmet Lake 95 mi · Angostura Reservoir 102 mi, SD · S Fork Pond, Lower 107 mi · Trigger Lake 108 mi · Magdalene Lake 108 mi · Ringbone Lake 108 mi · Willow Lake 1 109 mi
See how Keyhole Reservoir stacks up: best smallmouth bass lakes in Wyoming · best walleye lakes in Wyoming · best crappie lakes in Wyoming · best channel catfish lakes in Wyoming
Browse all Wyoming fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.