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1,446-acre lake near Enfield/Lebanon. NH GRANIT / NH Fish & Game survey water. The lake tops out around 70 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. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 1,439 acres wrapped in 9.3 miles of bank, with 3 islands in the mix. A middling shoreline index (1.7) gives it some bays to work without being a maze. 21% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 4.1 mi, about 0.8 mi across. It sits in Grafton County. If the bite dies, SMITH POND (GRAFTON) is 3 mi to the south.
Spring largemouth bass on Mascoma Lake hold shallow, usually 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 15 to 35 ft. Put Shallow bay flat first on the milk run — a weed flat near 5 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a texas-rigged 10" worm or a deep-diving crankbait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (5 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (8 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (6 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (28 ft) | Blade bait, Jigging spoon |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 15 to 35 ft for winter. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 5 ft. Fish it in early morning and you'll meet the bite. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (5 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Break off the point (28 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (28 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Break off the point (28 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring puts chain pickerel in skinny water — 2 to 10 ft is the zone. Warm water sends them out to 3 to 15 ft; cold water stacks them in 5 to 18 ft. Shallow bay flat is the standout, a weed flat at roughly 5 ft, rated prime for spring chain pickerel. Plan around early morning and the evening in the warm months. A weedless spoon + trailer or a buzzbait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (5 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (5 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (5 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Shallow bay flat (5 ft) | Jigging spoon (through ice) |
Early season bluegill use the shallows, holding in 1 to 6 ft. Expect a summer slide to 4 to 15 ft, then a winter hold in 10 to 25 ft. Put Shallow bay flat first on the milk run — a weed flat near 5 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (5 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (5 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Back-bay flat (8 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Shallow feeding flat (20 ft) | Tungsten ice jig + plastic, Tiny spoon |
Early season smallmouth bass use the shallows, holding in 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 20 to 45 ft one. The chart's best answer is Break off the point — drop-off, 28 ft, prime for winter. 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (6 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (28 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (6 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (28 ft) | Blade bait, Hair jig |
Come spring, look for white perch tight to the bank in 4 to 15 ft. Expect a summer slide to 15 to 40 ft, then a winter hold in 20 to 50 ft. Start at Shallow feeding flat. It's a feeding flat holding about 20 ft of water and rates prime come summer. Prime time lands in early morning. A small spinner rig drifted or a 1/8 oz jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Shallow bay flat (5 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 15 to 40 ft | dawn | Shallow feeding flat (20 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 15 to 45 ft | midday | Break off the point (28 ft) | Jigging spoon (small), Blade bait |
| Winter | 20 to 50 ft | dusk | Break off the point (28 ft) | Small rattle spoon, Tungsten + spikes |
Mascoma Lake also holds brook trout (10 to 30 ft in summer), brown bullhead (3 to 12 ft in summer), crappie (10 to 25 ft in summer), rock bass (5 to 20 ft in summer), pumpkinseed (2 to 10 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 8 features, led in depth by Deep basin at roughly 70 ft.
Access data: New Hampshire Fish & Game — Public Access Sites. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| May 16 | Brown Trout | 1,500 | — |
| May 12 | Rainbow Trout | 800 | — |
| May 7 | Landlocked Salmon | 479 | — |
| Apr 28 | Rainbow Trout | 900 | — |
Source: NH Fish & Game stocking report, retrieved 2026-08-18.
Season dates, license requirements, and size and bag limits for New Hampshire waters are set by the New Hampshire Fish and Game — and special regulations can apply to Mascoma Lake specifically, so confirm the current rules before you fish.
Check the official New Hampshire fishing regulations →
Mascoma Lake is about 70 ft (21 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, yellow perch, chain pickerel, bluegill, smallmouth bass, white perch, brook trout, brown bullhead, crappie, rock bass, pumpkinseed on Mascoma Lake.
Shallow bay flat is the top-rated area: a weed flat in about 5 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.
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.
Yes — per NH Fish & Game stocking report records, Mascoma Lake was most recently stocked May 16 with 1,500 brown trout. The full stocking history is listed above.
Fishing on Mascoma Lake is regulated by the New Hampshire Fish and Game. Check the official New Hampshire regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
SMITH POND (GRAFTON) 3 mi · Crystal Lake 4 mi · GEORGE POND 4 mi · COLE POND 5 mi · Spectacle Pond 6 mi · Goose Pond 6 mi · Canaan Street Lake 6 mi · HANOVER RESERVOIR 6 mi · Grafton Pond 7 mi · Eastman Pond 7 mi · Hanover Reservoirs (West Res.) 8 mi · Clark Pond 8 mi
See how Mascoma Lake stacks up: best largemouth bass lakes in New Hampshire · best smallmouth bass lakes in New Hampshire · best crappie lakes in New Hampshire · best bluegill lakes in New Hampshire
More water nearby: Grafton County fishing maps (56 charts). Browse all New Hampshire 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.