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133-acre lake in Grant County, Kentucky. The lake tops out around 60 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. Below is the species-by-species picture, pulled from the same data the map uses.
There are 5.7 miles of drawn shoreline to work. A development index of 4.2 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 50% of the water is 15 ft or less, the band where the food chain lives. Figure 1.1 mi of water from one end to the other, 0.8 mi at the beam. Grant County claims this one. If the bite dies, Williamstown Lake is 5 mi to the southeast.
When the water first warms, largemouth bass slide up into 2 to 10 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Shallow 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 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 | Shallow bay flat (2 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (7 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Secondary point (13 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (7 ft) | Blade bait, Jigging spoon |
Come spring, look for crappie tight to the bank in 2 to 8 ft. Expect a summer slide to 10 to 25 ft, then a winter hold in 15 to 35 ft. Start at Shallow bay flat. It's a weed flat holding about 2 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (7 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (7 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Deep basin (58 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
When the water first warms, bluegill slide up into 1 to 6 ft. Summer is a 4 to 15 ft game here, winter a 10 to 25 ft one. Start at Shallow 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 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 | Shallow bay flat (2 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Back-bay flat (3 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (7 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (58 ft) | Tungsten ice jig + plastic, Tiny spoon |
When the water first warms, channel catfish slide up into 3 to 12 ft. By summer they slide out to 8 to 25 ft, and by winter most fish are in 20 to 40 ft. If you only fish one area, make it Break off the point: a drop-off around 7 ft that scores good in summer. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Back-bay flat (3 ft) | |
| Summer | 8 to 25 ft | night & dusk | Break off the point (7 ft) | |
| Fall | 10 to 30 ft | dusk | Break off the point (7 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (58 ft) |
The spring pattern is a shallow one: saugeye in 3 to 12 ft. Midsummer fish sit out in 8 to 22 ft before dropping to 12 to 30 ft for winter. The spot to know is Break off the point, a drop-off in about 7 ft of water that rates prime for saugeye in fall. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness (shallow) or a jig + crawler gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk & dawn | Secondary point (13 ft) | 1/8 oz jig + twister tail, Blade bait |
| Summer | 8 to 22 ft | dusk & dawn | Main-lake point (16 ft) | Crawler harness (shallow), Jig + crawler |
| Fall | 8 to 28 ft | dusk & dawn | Break off the point (7 ft) | Blade bait, Jigging rap |
| Winter | 12 to 30 ft | dusk & dawn | Break off the point (7 ft) | Jigging spoon + minnow head, Blade bait |
Spring puts blue catfish in skinny water — 5 to 25 ft is the zone. Warm water sends them out to 10 to 40 ft; cold water stacks them in 20 to 50 ft. Break off the point is the standout, a drop-off at roughly 7 ft, rated prime for spring blue catfish. Plan around early morning and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dusk | Break off the point (7 ft) | |
| Summer | 10 to 40 ft | dawn & dusk | Break off the point (7 ft) | |
| Fall | 15 to 45 ft | dusk | Break off the point (7 ft) | |
| Winter | 20 to 50 ft | midday | Deep basin (58 ft) |
Boltz Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 58 ft down.
Access data: Kentucky Fish & Wildlife — Fishing Access Sites. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Kentucky waters are set by the Kentucky Department of Fish & Wildlife — and special regulations can apply to Boltz Lake specifically, so confirm the current rules before you fish.
Check the official Kentucky fishing regulations →
Boltz Lake is about 60 ft (18 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 largemouth bass, crappie, bluegill, channel catfish, saugeye, blue catfish on Boltz Lake.
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. The interactive chart above rates every spot for each species and season.
For largemouth bass, 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 Boltz Lake is regulated by the Kentucky Department of Fish & Wildlife. Check the official Kentucky regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Williamstown Lake 5 mi · Bullock Pen Lake 7 mi · Corinth Lake 14 mi · A.J. Jolly Lake 18 mi · Ohio River - Markland Pool 18 mi, OH/KY · Kincaid Lake 18 mi · Elmer Davis Lake 20 mi · Licking River (Lower) 20 mi · Benjy Kinman Lake 25 mi · Elkhorn Creek 32 mi · East Fork Lake (Harsha Lake) 35 mi, OH · Winton Woods Lake 39 mi, OH
See how Boltz Lake stacks up: best largemouth bass lakes in Kentucky · best crappie lakes in Kentucky · best bluegill lakes in Kentucky · best channel catfish lakes in Kentucky
Browse all Kentucky 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.