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3,387-acre reservoir near Delaware. Clear-water saugeye and smallmouth close to Columbus. The lake tops out around 63 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. Species by species, here's what the data says the year looks like.
Alum Creek Lake maps at 3,176 acres behind 59.4 miles of shoreline. That shoreline is heavily fingered (development index 7.5) — bays, points and pockets everywhere, which multiplies the fishable edge. Roughly 45% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 10.5 mi, about 2.5 mi across. Delaware County claims this one. Its nearest charted neighbour, Hoover Reservoir, is 8 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 (14 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Secondary point (8 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (14 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 (14 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (14 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Break off the point (14 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 | Marina / dock area (6 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (14 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Break off the point (14 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 Shallow feeding flat: a feeding flat around 16 ft that scores prime in fall. 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 | Shallow feeding flat (7 ft) | |
| Summer | 8 to 25 ft | night & dusk | Shallow feeding flat (16 ft) | |
| Fall | 10 to 30 ft | dusk | Shallow feeding flat (16 ft) | |
| Winter | 20 to 40 ft | midday | Old creek channel (46 ft) |
Come spring, look for smallmouth bass tight to the bank in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 20 to 45 ft. Start at Rock reef. It's a rock pile holding about 3 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A drop shot (goby/minnow) or a ned rig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Rock reef (3 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (14 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (17 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (14 ft) | Blade bait, Hair jig |
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 14 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 | Rock reef (3 ft) | 1/8 oz jig + twister tail, Blade bait |
| Summer | 8 to 22 ft | dusk & dawn | Main-lake point (17 ft) | Crawler harness (shallow), Jig + crawler |
| Fall | 8 to 28 ft | dusk & dawn | Break off the point (14 ft) | Blade bait, Jigging rap |
| Winter | 12 to 30 ft | dusk & dawn | Break off the point (14 ft) | Jigging spoon + minnow head, Blade bait |
Alum Creek Lake also holds muskellunge (8 to 25 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Alum Creek Lake carries 19 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 57 ft down.
Access data: Ohio DNR — Boater & Stream Access. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Ohio waters are set by the Ohio DNR Division of Wildlife — and special regulations can apply to Alum Creek Lake specifically, so confirm the current rules before you fish.
Check the official Ohio fishing regulations →
Alum Creek Lake is about 63 ft (19 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, smallmouth bass, saugeye, muskellunge on Alum Creek 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 Alum Creek Lake is regulated by the Ohio DNR Division of Wildlife. Check the official Ohio regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Hoover Reservoir 8 mi · Olentangy River 9 mi · O'Shaughnessy Reservoir 10 mi · Delaware Lake 11 mi · Antrim Lake 13 mi · Griggs Reservoir 16 mi · Mount Gilead Lake 21 mi · Anderson Lake 24 mi · Kokosing Lake 26 mi · Knox Lake 29 mi · Amick Reservoir 32 mi · Powers Reservoir 33 mi
See how Alum Creek Lake stacks up: best largemouth bass lakes in Ohio · best smallmouth bass lakes in Ohio · best saugeye lakes in Ohio · best crappie lakes in Ohio
More water nearby: Delaware County fishing maps (5 charts). Browse all Ohio 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.