Sign inSign up free Sign inSign up free Sign inSign up freeShared by DepthScout anglers. Exact spots stay private, always.
361-acre reservoir near Columbus. The lake tops out around 23 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. The rest of this page walks each species through its year, using the map's own scoring.
Drawn out, this is 361 acres of water rimmed by 12 miles of bank. The 4.5 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. The basin spans about 5.5 mi end to end and 0.5 mi across at its widest. The water lies in Franklin County. The nearest mapped water is Antrim Lake, 4 mi to the northeast.
Spring puts largemouth bass in skinny water — 2 to 10 ft is the zone. As the season builds they drop to 8 to 20 ft, wintering in 7 to 23 ft. Spring largemouth bass concentrate at Shallow bay flat, a prime-rated weed flat around 8 ft. Warm-month bites cluster around early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (8 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (8 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 | 7 to 23 ft | midday | Break off the point (8 ft) | Blade bait, Jigging spoon |
In spring, crappie run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 7 to 23 ft, and winter fish settle into 7 to 23 ft. Deep basin is the standout, a deep basin at roughly 15 ft, rated prime for winter crappie. Time it for early morning and the evening. You won't need more than a jig trolled/spider-rigged or a small crankbait (trolled) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (8 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 7 to 23 ft | dawn & dusk | Old creek channel (7 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Old creek channel (7 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 7 to 23 ft | midday | Deep basin (15 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. Summer pushes them deeper, 4 to 15 ft, and winter fish settle into 7 to 23 ft. The spot to know is Back-bay flat, a weed flat in about 2 ft of water that rates prime for bluegill in spring. Warm-month bites cluster around early morning and the evening. Throw a small sponge spider (fly) or a micro tube jig until the fish tell you otherwise.
| 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 (8 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (8 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 7 to 23 ft | midday | Deep basin (15 ft) | Tungsten ice jig + plastic, Tiny spoon |
Spring puts channel catfish in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 7 to 23 ft, wintering in 7 to 23 ft. Spring channel catfish concentrate at Hayden Run inflow, a prime-rated inflow / creek mouth around 3 ft. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Hayden Run inflow (3 ft) | |
| Summer | 7 to 23 ft | night & dusk | Old creek channel (7 ft) | |
| Fall | 7 to 23 ft | dusk | Old creek channel (7 ft) | |
| Winter | 7 to 23 ft | midday | Deep basin (15 ft) |
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 7 to 23 ft, and winter fish settle into 7 to 23 ft. Main-lake point is the standout, a point at roughly 7 ft, rated prime for fall smallmouth bass. Time it for early morning and the evening. You won't need more than a drop shot (goby/minnow) or a ned rig most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (7 ft) | Ned rig, Tube jig |
| Summer | 7 to 23 ft | dawn & dusk | Break off the point (8 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 7 to 23 ft | midday & dawn | Main-lake point (7 ft) | Jerkbait, Blade bait |
| Winter | 7 to 23 ft | midday | Break off the point (8 ft) | Blade bait, Hair jig |
The chart marks 11 structure features on Griggs Reservoir; the deepest is Deep basin at about 15 ft.
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 Griggs Reservoir specifically, so confirm the current rules before you fish.
Check the official Ohio fishing regulations →
Griggs Reservoir is about 23 ft (7 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 on Griggs Reservoir.
Shallow bay flat is the top-rated area: a weed flat in about 8 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by 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 Griggs Reservoir 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.
Antrim Lake 4 mi · Olentangy River 8 mi · Anderson Lake 11 mi · O'Shaughnessy Reservoir 11 mi · Hoover Reservoir 14 mi · Alum Creek Lake 16 mi · Madison Lake 19 mi · Delaware Lake 24 mi · Clark Lake 30 mi · Deer Creek Lake 30 mi · Hargus Creek Lake 32 mi · C.J. Brown Reservoir 34 mi
See how Griggs Reservoir stacks up: best largemouth bass lakes in Ohio · best smallmouth bass lakes in Ohio · best crappie lakes in Ohio · best bluegill lakes in Ohio
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.