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64-acre reservoir in Ohio. The lake tops out around 24 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. Here is how the season plays out for each species, straight from the data behind the map.
On the chart, Norwalk Upper Reservoir draws 64 acres inside 1.3 miles of shoreline. The basin is a simple one (shoreline index 1.1) — close to a bowl, so the structure on the chart matters more than the bank. Littoral water — the productive band under ~15 ft — makes up 81% of this chart. Call it 0.6 mi long by 0.3 mi wide at the broadest reach. Closest neighbour on DepthScout: Monroeville Reservoir, 7 mi west of here.
Spring puts largemouth bass in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 8 to 20 ft; cold water stacks them in 7 to 24 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring largemouth bass. Plan around early morning and the evening in the warm months. 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 (2 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (18 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (4 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 7 to 24 ft | midday | Break off the point (18 ft) | Blade bait, Jigging spoon |
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. Warm water sends them out to 4 to 15 ft; cold water stacks them in 7 to 24 ft. Top water on the chart: Shallow bay flat, a weed flat in the 2 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. 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 | Shallow bay flat (2 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (2 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (18 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 7 to 24 ft | midday | Deep basin (23 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, crappie run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 7 to 24 ft before dropping to 7 to 24 ft for winter. Winter crappie concentrate at Deep basin, a prime-rated deep basin around 23 ft. Fish it in early morning and the evening and you'll meet the bite. 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 (2 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 7 to 24 ft | dawn & dusk | Break off the point (18 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (18 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 7 to 24 ft | midday | Deep basin (23 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Spring puts channel catfish in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 7 to 24 ft; cold water stacks them in 7 to 24 ft. Deep basin is the standout, a deep basin at roughly 23 ft, rated prime for winter channel catfish. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (2 ft) | |
| Summer | 7 to 24 ft | night & dusk | Deep basin (23 ft) | |
| Fall | 7 to 24 ft | dusk | Deep basin (23 ft) | |
| Winter | 7 to 24 ft | midday | Deep basin (23 ft) |
Come spring, look for saugeye tight to the bank in 3 to 12 ft. They move out to 8 to 22 ft in summer and finish the year down in 7 to 24 ft. If you only fish one area, make it Break off the point: a drop-off around 18 ft that scores prime in fall. Best bite is the evening and early morning. A crawler harness (shallow) or a jig + crawler is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk & dawn | Main-lake point (4 ft) | 1/8 oz jig + twister tail, Blade bait |
| Summer | 8 to 22 ft | dusk & dawn | Break off the point (18 ft) | Crawler harness (shallow), Jig + crawler |
| Fall | 7 to 24 ft | dusk & dawn | Break off the point (18 ft) | Blade bait, Jigging rap |
| Winter | 7 to 24 ft | dusk & dawn | Deep basin (23 ft) | Jigging spoon + minnow head, Blade bait |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Summer is a 7 to 24 ft game here, winter a 7 to 24 ft one. The chart's best answer is Deep basin — deep basin, 23 ft, prime for fall. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 7 to 24 ft | dawn | Deep basin (23 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 7 to 24 ft | midday | Deep basin (23 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 7 to 24 ft | midday & dawn | Deep basin (23 ft) | Tungsten jig + spikes, Rattle spoon (small) |
5 pieces of structure are mapped here — Deep basin, around 23 ft, is the deepest of them.
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 Norwalk Upper Reservoir specifically, so confirm the current rules before you fish.
Check the official Ohio fishing regulations →
Norwalk Upper Reservoir is about 24 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, bluegill, crappie, channel catfish, saugeye, yellow perch on Norwalk Upper Reservoir.
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. Every other rated spot, per species and season, is on the map above.
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 Norwalk Upper 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.
Monroeville Reservoir 7 mi · Bellevue # 5 10 mi · Bellevue # 4 13 mi · Willard Lake 13 mi · New London Reservoir 14 mi · Wellington South Reservoir 19 mi · Findley Lake 20 mi · Lake Erie - Sandusky Bay 21 mi · Raccoon Creek Reservoir 21 mi · Shelby Reservoir #3 23 mi · Beaver Creek Reservoir 23 mi · Sandusky River 27 mi
See how Norwalk Upper Reservoir stacks up: best largemouth bass lakes in Ohio · best saugeye 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.