Lake depth chart
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48-acre reservoir in Ohio. The lake tops out around 33 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
Delphos Gillmor Reservoir maps at 48 acres behind 1.1 miles of shoreline. At index 1.2 the outline is almost a bowl — read the depth changes, not the shoreline. 28% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 0.4 mi with a 0.2-mi widest point. Van Wert City Reservoir 1 sits 11 mi west — the closest neighbouring chart.
Early season largemouth bass use the shallows, holding in 2 to 10 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 10 to 33 ft. Put Break off the point first on the milk run — a drop-off near 30 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (1 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | open water | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (1 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 10 to 33 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (30 ft) | Blade bait, Jigging spoon |
Spring bluegill on Delphos Gillmor Reservoir hold shallow, usually 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 10 to 25 ft. Put Shallow bay flat first on the milk run — a weed flat near 1 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a small sponge spider (fly) or a micro tube jig.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (1 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (1 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | open water | Tungsten ice jig + plastic, Tiny spoon |
Spring crappie on Delphos Gillmor Reservoir hold shallow, usually 2 to 8 ft. By summer they slide out to 10 to 25 ft, and by winter most fish are in 10 to 33 ft. The chart's best answer is Deep basin — deep basin, 33 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a jig trolled/spider-rigged or a small crankbait (trolled).
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (30 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | open water | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 10 to 33 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (33 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Early season channel catfish use the shallows, holding in 3 to 12 ft. Expect a summer slide to 8 to 25 ft, then a winter hold in 10 to 33 ft. Put Deep basin first on the milk run — a deep basin near 33 ft that grades prime for winter. In summer the feeding windows fall in after dark and the evening.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | open water | |
| Summer | 8 to 25 ft | night & dusk | open water | |
| Fall | 10 to 30 ft | dusk | Deep basin (33 ft) | |
| Winter | 10 to 33 ft chart-limited; documented 20 to 40 ft | midday | Deep basin (33 ft) |
Spring puts saugeye in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 8 to 22 ft; cold water stacks them in 12 to 30 ft. Break off the point is the standout, a drop-off at roughly 30 ft, rated prime for fall saugeye. Plan around the evening and early morning in the warm months. A crawler harness (shallow) or a jig + crawler covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk & dawn | Main-lake point (1 ft) | 1/8 oz jig + twister tail, Blade bait |
| Summer | 8 to 22 ft | dusk & dawn | open water | Crawler harness (shallow), Jig + crawler |
| Fall | 8 to 28 ft | dusk & dawn | Break off the point (30 ft) | Blade bait, Jigging rap |
| Winter | 12 to 30 ft | dusk & dawn | Deep basin (33 ft) | Jigging spoon + minnow head, Blade bait |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 10 to 33 ft. Fall yellow perch concentrate at Deep basin, a prime-rated deep basin around 33 ft. Warm-month bites cluster around early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (30 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 10 to 33 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (33 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 10 to 33 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (33 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The chart marks 5 structure features on Delphos Gillmor Reservoir; the deepest is Deep basin at about 33 ft.
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 Delphos Gillmor Reservoir specifically, so confirm the current rules before you fish.
Check the official Ohio fishing regulations →
Delphos Gillmor Reservoir is about 33 ft (10 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.
Anglers target largemouth bass, bluegill, crappie, channel catfish, saugeye, yellow perch on Delphos Gillmor Reservoir.
Break off the point is the top-rated area: a drop-off in about 30 ft of water that rates prime for largemouth bass in winter. 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 Delphos Gillmor 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.
Van Wert City Reservoir 1 11 mi · Williams Reservoir 11 mi · Bresler Reservoir 12 mi · Lost Creek Reservoir 18 mi · Lima Lake 19 mi · Metzger Reservoir 19 mi · Ferguson Reservoir 19 mi · Ottawa Reservoir 20 mi · Paulding Reservoir 20 mi · Grand Lake St. Marys 26 mi · Defiance Reservoir 27 mi · Lake Wayne R Carr 29 mi
See how Delphos Gillmor 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. 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.