Shared by DepthScout anglers. Exact spots stay private, always.
53-acre reservoir near Oxford Township. The lake tops out around 30 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. What follows comes from the same scoring engine that paints the spots above.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 9 to 30 ft. Shallow bay flat is the standout, a weed flat at roughly 10 ft, rated prime for spring largemouth bass. Best bite is early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 30 ft | midday | Blade bait, Jigging spoon |
Spring smallmouth bass on Furnace Lake hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 9 to 30 ft. Main-lake point is the standout, a point at roughly 10 ft, rated prime for fall smallmouth bass. Best bite is early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 9 to 30 ft | midday | Blade bait, Hair jig |
Spring bluegill on Furnace Lake hold shallow, usually 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 10 to 25 ft. Back-bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring bluegill. Plan around early morning and the evening in the warm months. A small sponge spider (fly) or a micro tube jig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
In spring, channel catfish run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 9 to 30 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated prime for winter channel catfish. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 10 to 30 ft | dusk | |
| Winter | 9 to 30 ft | midday |
Spring muskellunge on Furnace Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 8 to 25 ft, and by winter most fish are in 9 to 30 ft. The spot to know is Break off the point, a drop-off in about 17 ft of water that rates prime for muskellunge in fall. In summer the feeding windows fall in the evening and early morning. Tie on a double-10 bucktail or a topwater (walk-the-dog / creeper) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Smaller bucktail (#8 blades), 6" glide bait |
| Summer | 8 to 25 ft | dusk & dawn | Double-10 bucktail, Topwater (walk-the-dog / creeper) |
| Fall | 8 to 30 ft | midday & dusk | Big rubber (Bull Dawg style), 10"+ glide bait |
| Winter | 9 to 30 ft | midday | Large rubber, crawled slow |
In spring, northern pike run shallow here, mostly 2 to 8 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. The spot to know is Back-bay flat, a weed flat in about 4 ft of water that rates prime for northern pike in spring. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Furnace Lake also holds crappie (10 to 25 ft in summer), rainbow trout (8 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
How deep is Furnace Lake?
Furnace Lake is about 30 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Furnace Lake?
Anglers target largemouth bass, smallmouth bass, northern pike, crappie, bluegill, channel catfish, rainbow trout, muskellunge on Furnace Lake.
Where is the best fishing spot on Furnace Lake?
Shallow bay flat is the top-rated area: a weed flat in about 10 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Furnace Lake?
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.
Spruce Run Reservoir · White Lake · Cranberry Lake · Raritan River · Mashipacong Pond · Cozy Lake
See how Furnace Lake stacks up: best largemouth bass lakes in New Jersey · best smallmouth bass lakes in New Jersey · best northern pike lakes in New Jersey · best crappie lakes in New Jersey
Browse all New Jersey fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.