Lake Jap Beaver Depth Map & Fishing Spots (OK)

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Lake depth chart

Lake Jap Beaver, OK

Max 28 ft

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Where to start

Fall shad migration window is on — see the hatch outlook

Hatch outlook

Fall shad migrationActive window

Typical here: Sep 1 – Dec 15 · upper ends and stained creeks turn on first, the main lake follows; Deep-South creeks hold bait into December

adultall day, best mid-afternoon as the sun warms the bait — the rare pattern where you can sleep in — follow the bait, not the structure: gulls, herons and egrets diving or stacked in a creek mean the shad (and the bass) are there — run and gun until you find flickering bait or surface activity

Concentrates hard but unevenly — whole stretches go empty while one creek loads up. The birds are the map.

Creek-arm run-and-gun: lipless crankbait and squarebill through the flats and ditches, walking topwater over surface schools, a 3/8 oz spinnerbait around isolated cover along the creek channel. Downsize to match the young-of-year shad; jerkbaits are the sleeper.

The event happens over backs of creek arms, pockets and ditches, secondary points on the way in, and main-lake flats where the bait balls roam

Willow fly (summer mayfly)Active window

Typical here: Apr 1 – Oct 31 · recurring broods all summer — the heart of it is June–July, famously around July 4th on the Tennessee River lakes; any one hatch lasts days to ~3 weeks

dunhatches at dusk — clouds of bugs just before dark, continuing into the night — after hatching they fly to shoreline foliage — trees near lighted docks get covered; the feeding zone is the water under bug-loaded overhanging bushes and willows
spinnerthe following days: mating, egg drop and spent flies falling from the overhangs — the bream bite under the bushes runs as long as the bugs do

A two-level event: bream stack under the bug trees, and the big bass stack under the bream. Fish the same bushes twice — small for bream, big for the bass just outside them.

Crickets or small poppers under a float tight to the bug-covered bushes for bream; beetle spins and hair jigs just under the surface; for the bass, run a bluegill-pattern topwater or squarebill down the outside edge of the overhangs.

The event happens over under and just outside overhanging willows and bushes on steep banks; trees near lighted docks after dark

Next on this water

Spring crawfish emergence · forageFeb 15 – May 15 · in ~6 months

Shad spawn · baitfishMar 15 – Jun 15 · in ~6 months

Bluegill spawn (bream-bed bass) · forageMay 1 – Jul 31 · in ~8 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

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Recent catches at Lake Jap Beaver

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Lake Jap Beaver on the board.

Fishing Lake Jap Beaver: what the data says

40-acre reservoir in Jefferson County, Oklahoma. The lake tops out around 28 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.

The drawn water covers 40 acres wrapped in 1.8 miles of bank. With a 2 development index there's bank structure worth casting at, in moderation. About 57% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 0.6 mi end to end and 0.4 mi across at its widest. It sits in Jefferson County. Waurika Lake sits 7 mi north — the closest neighbouring chart.

Bluegill fishing at Lake Jap Beaver

When the water first warms, bluegill slide up into 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 10 to 25 ft. If you only fish one area, make it Back-bay flat: a weed flat around 2 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Keep a small sponge spider (fly) or a micro tube jig rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 6 ft	midday & dusk	Back-bay flat (2 ft)	1/32 oz jig + micro plastic, Tiny popper (evenings)
Summer	4 to 15 ft	dawn & dusk	Shallow bay flat (14 ft)	Small sponge spider (fly), Micro tube jig
Fall	6 to 18 ft	midday	Shallow bay flat (14 ft)	Micro jig + waxworm, Small spoon tipped
Winter	10 to 25 ft	midday	Deep basin (27 ft)	Tiny spoon

Largemouth Bass fishing at Lake Jap Beaver

When the water first warms, largemouth bass slide up into 2 to 10 ft. Summer is an 8 to 20 ft game here, winter an 8 to 28 ft one. Start at Back-bay flat. It's a weed flat holding about 2 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a texas-rigged 10" worm or a deep-diving crankbait rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Back-bay flat (2 ft)	Spinnerbait, Chatterbait
Summer	8 to 20 ft	dawn & dusk	Shallow bay flat (14 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Main-lake point (7 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	8 to 28 ft	midday	Break off the point (13 ft)	Blade bait, Jigging spoon

Notable structure

The chart marks 6 structure features on Lake Jap Beaver; the deepest is Deep basin at about 27 ft.

Deep basin: deep basin, around 27 ft
Shallow bay flat: weed flat, around 14 ft
Break off the point: drop-off, around 13 ft
Main-lake point: point, around 7 ft
Secondary point: point, around 4 ft
Back-bay flat: weed flat, around 2 ft

Lake Jap Beaver fishing regulations

Season dates, license requirements, and size and bag limits for Oklahoma waters are set by the Oklahoma Department of Wildlife Conservation — and special regulations can apply to Lake Jap Beaver specifically, so confirm the current rules before you fish.

Check the official Oklahoma fishing regulations →

Common questions

How deep is Lake Jap Beaver?

Lake Jap Beaver is about 28 ft (9 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.

What fish are in Lake Jap Beaver?

Anglers target bluegill, largemouth bass on Lake Jap Beaver.

Where is the best fishing spot on Lake Jap Beaver?

Back-bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for bluegill in spring. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Lake Jap Beaver?

For bluegill, 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.

What are the fishing regulations for Lake Jap Beaver?

Fishing on Lake Jap Beaver is regulated by the Oklahoma Department of Wildlife Conservation. Check the official Oklahoma regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.

Nearby waters

Waurika Lake 7 mi · Dave Boyer Lake 21 mi · Duncan Lake 27 mi · Clear Creek Lake 31 mi · Lake Nocona 32 mi, TX · Healdton City Lake 35 mi · Lake Wichita 37 mi, TX · Lake Arrowhead 38 mi, TX · North Fork Buffalo Creek Reservoir 42 mi, TX · Elmer Thomas Lake 46 mi · Mountain Lake 46 mi · Lake Lawtonka 48 mi

See how Lake Jap Beaver stacks up: best largemouth bass lakes in Oklahoma · best bluegill lakes in Oklahoma

Browse all Oklahoma fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. 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.