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Rating depth structure for largemouth bass.
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10-acre lake near Grenloch. The lake tops out around 7 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.
On the chart, Grenloch Lake draws 9 acres inside 2.3 miles of shoreline — one island included. That shoreline is heavily fingered (development index 5.5) — bays, points and pockets everywhere, which multiplies the fishable edge. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. The basin spans about 0.3 mi end to end. You'll find it in Gloucester County. For a second option, Newton Lake lies 9 mi north.
The spring pattern is a shallow one: rainbow trout in 2 to 7 ft. The depth story barely changes: 2 to 7 ft through summer, 1 to 7 ft in winter. Top water on the chart: Break off the point, a drop-off in the 5 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft | dawn & dusk | Main-lake point (2 ft) | Inline spinner (silver), Small spoon |
| Summer | 2 to 7 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 2 to 7 ft | dawn & dusk | Main-lake point (2 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 1 to 7 ft | dawn | Break off the point (5 ft) | Jigging spoon, Tube jig (white) |
In spring, largemouth bass run shallow here, mostly 1 to 7 ft. Summer keeps them at 2 to 7 ft, and they winter in 2 to 7 ft. Fall largemouth bass concentrate at Main-lake point, a prime-rated point around 2 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 7 ft | dawn & dusk | Main-lake point (2 ft) | Spinnerbait, Chatterbait |
| Summer | 2 to 7 ft | dawn & dusk | Break off the point (5 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 2 to 7 ft | midday & dawn | Main-lake point (2 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 2 to 7 ft | midday | Break off the point (5 ft) | Blade bait, Jigging spoon |
Early season chain pickerel use the shallows, holding in 1 to 7 ft. Even in summer they hold at 1 to 7 ft; winter keeps them in 2 to 7 ft. The chart's best answer is Break off the point — drop-off, 5 ft, prime for fall. Best bite is early morning and the evening. Tie on a weedless spoon + trailer or a buzzbait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 7 ft | midday & dawn | open water | Inline spinner (silver), Small spoon (red/white) |
| Summer | 1 to 7 ft | dawn & dusk | Break off the point (5 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 2 to 7 ft | midday & dawn | Break off the point (5 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 2 to 7 ft | dawn | Break off the point (5 ft) | Jigging spoon (through ice) |
The spring pattern is a shallow one: brown bullhead in 2 to 7 ft. The depth story barely changes: 2 to 7 ft through summer, 2 to 7 ft in winter. The spot to know is Deep basin, a deep basin in about 7 ft of water that rates prime for brown bullhead in winter. Plan around after dark and the evening in the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft | dusk & night | open water | |
| Summer | 2 to 7 ft | night & dusk | Deep basin (7 ft) | |
| Fall | 2 to 7 ft | dusk | Deep basin (7 ft) | |
| Winter | 2 to 7 ft | midday | Deep basin (7 ft) |
The spring pattern is a shallow one: common carp in 1 to 7 ft. The depth story barely changes: 1 to 7 ft through summer, 2 to 7 ft in winter. Top water on the chart: Deep basin, a deep basin in the 7 ft range, prime in winter. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 7 ft | midday & dawn | Deep basin (7 ft) | |
| Summer | 1 to 7 ft | dawn & dusk | Deep basin (7 ft) | |
| Fall | 2 to 7 ft | midday | Deep basin (7 ft) | |
| Winter | 2 to 7 ft | midday | Deep basin (7 ft) |
Spring puts crappie in skinny water — 2 to 7 ft is the zone. Summer fish stay in 2 to 7 ft, and winter fish hold in 2 to 7 ft. Deep basin is the standout, a deep basin at roughly 7 ft, rated prime for winter crappie. Plan around early morning and the evening in the warm months. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 7 ft | midday & dawn | open water | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 2 to 7 ft | dawn & dusk | Break off the point (5 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 2 to 7 ft | dawn | Break off the point (5 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 2 to 7 ft | midday | Deep basin (7 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Grenloch Lake also holds bluegill (2 to 7 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Grenloch Lake carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 7 ft down.
Season dates, license requirements, and size and bag limits for New Jersey waters are set by the New Jersey Fish & Wildlife — and special regulations can apply to Grenloch Lake specifically, so confirm the current rules before you fish.
Check the official New Jersey fishing regulations →
Grenloch Lake is about 7 ft (2 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 rainbow trout, largemouth bass, chain pickerel, brown bullhead, common carp, crappie, bluegill on Grenloch Lake.
Main-lake point is the top-rated area: a point in about 2 ft of water that rates prime for largemouth bass in fall. Open the map above to see every rated spot for each species and season.
For rainbow trout, 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 Grenloch Lake is regulated by the New Jersey Fish & Wildlife. Check the official New Jersey regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Newton Lake 9 mi · Schuylkill River 12 mi, NJ/DE · Greenwich Lake 12 mi · Hammonton Lake 18 mi · Lake Pemberton 24 mi · Mary Elmer Lake 25 mi · Brandywine Creek 27 mi, DE · Big Pine Lake 29 mi · Shaws Mill Pond 33 mi · Mill Pond 35 mi · Lake Absegami 35 mi · Becks Pond 36 mi, DE
See how Grenloch Lake stacks up: best largemouth bass lakes in New Jersey · best crappie lakes in New Jersey · best bluegill lakes in New Jersey · best rainbow trout lakes in New Jersey
Browse all New Jersey fishing maps or 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.