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815-acre reservoir near Hillsborough. NH GRANIT / NH Fish & Game survey water. 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. Below is the species-by-species picture, pulled from the same data the map uses.
The outline encloses 815 acres, worked by 5.2 miles of shoreline. The basin is a simple one (shoreline index 1.3) — close to a bowl, so the structure on the chart matters more than the bank. Roughly 58% of the water is 15 ft or less, the band where the food chain lives. Tip to tip the water measures near 2.4 mi with a 0.8-mi widest point. It sits in Hillsborough County. If the bite dies, CAMPBELL POND is 1 mi to the southeast.
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Expect a summer slide to 8 to 30 ft, then a winter hold in 6 to 30 ft. Put Break off the point first on the milk run — a drop-off near 8 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Break off the point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (8 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 9 to 30 ft | dawn & dusk | Break off the point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 30 ft | dawn | Break off the point (8 ft) | Jigging spoon, Tube jig (white) |
Spring puts brown trout in skinny water — 3 to 25 ft is the zone. Warm water sends them out to 9 to 30 ft; cold water stacks them in 4 to 30 ft. Break off the point is the standout, a drop-off at roughly 8 ft, rated prime for summer brown trout. Plan around after dark and early morning in the warm months. A spoon at the thermocline or a deep stickbait (night) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (1 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 9 to 30 ft | night & dawn | Break off the point (8 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Break off the point (8 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 4 to 30 ft | dawn | Break off the point (8 ft) | Jigging spoon, Small stickbait (slow) |
Come spring, look for northern pike tight to the bank in 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. If you only fish one area, make it Break off the point: a drop-off around 8 ft that scores prime in fall. Best bite is early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Break off the point (8 ft) | Tip-ups, Large jigging spoon |
Come spring, look for smallmouth bass tight to the bank in 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 9 to 30 ft. If you only fish one area, make it Break off the point: a drop-off around 8 ft that scores prime in winter. Best bite is early morning and the evening. A drop shot (goby/minnow) or a ned rig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (1 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (8 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Break off the point (8 ft) | Jerkbait, Blade bait |
| Winter | 9 to 30 ft | midday | Break off the point (8 ft) | Blade bait, Hair jig |
When the water first warms, largemouth bass slide up into 2 to 10 ft. Summer is an 8 to 20 ft game here, winter a 9 to 30 ft one. Start at Break off the point. It's a drop-off holding about 8 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a texas-rigged 10" worm or a deep-diving crankbait rigged through the warm months.
| 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 | Break off the point (8 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (1 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 30 ft | midday | Break off the point (8 ft) | Blade bait, Jigging spoon |
Spring white perch on Jackman Reservoir hold shallow, usually 4 to 15 ft. By summer they slide out to 9 to 30 ft, and by winter most fish are in 9 to 30 ft. The chart's best answer is Deep basin — deep basin, 30 ft, prime for summer. Prime time lands in early morning. The summer box starts with a small spinner rig drifted or a 1/8 oz jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Shallow bay flat (1 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 9 to 30 ft | dawn | Deep basin (30 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 9 to 30 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Blade bait |
| Winter | 9 to 30 ft | dusk | Deep basin (30 ft) | Small rattle spoon, Tungsten + spikes |
Jackman Reservoir also holds crappie (10 to 25 ft in summer), bluegill (4 to 15 ft in summer), brown bullhead (3 to 12 ft in summer), chain pickerel (3 to 15 ft in summer). Pick any of them on the map above for rated spots and bait picks.
6 pieces of structure are mapped here — Deep basin, around 30 ft, is the deepest of them.
Access data: New Hampshire Fish & Game — Public Access Sites. Confirm conditions and fees locally before you launch.
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 Jackman Reservoir specifically, so confirm the current rules before you fish.
Check the official New Hampshire fishing regulations →
Jackman Reservoir is about 30 ft (9 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 rainbow trout, brown trout, northern pike, smallmouth bass, largemouth bass, white perch, crappie, bluegill, brown bullhead, chain pickerel on Jackman Reservoir.
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for white perch in summer. Every other rated spot, per species and season, is on the map above.
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 Jackman Reservoir 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.
CAMPBELL POND 1 mi · Bagley Pond 2 mi · Black Pond 3 mi · White Pond (Windsor) 4 mi · Gregg Lake 4 mi · Contention Pond 5 mi · Gould Pond 5 mi · TROUT POND (CHESHIRE) 5 mi · SMITH POND (SULLIVAN) 6 mi · Willard Pond 6 mi · Deering Reservoir 6 mi · North Branch Willard Mtn Impon 6 mi
See how Jackman Reservoir stacks up: best largemouth bass lakes in New Hampshire · best smallmouth bass lakes in New Hampshire · best northern pike lakes in New Hampshire · best crappie lakes in New Hampshire
More water nearby: Hillsborough County fishing maps (58 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.