Lake depth chart
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Rating depth structure for smallmouth bass.
Recent public catches load as you reach this section.
31-acre lake near Stoddard. NH GRANIT / NH Fish & Game survey water. The lake tops out around 12 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here is how the season plays out for each species, straight from the data behind the map.
Traced from the shoreline, North Branch Willard Mtn Impon runs 31 acres with 1 miles of edge. Nearly circular (index 1.3), so the story is the bottom, not the bank. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Figure 0.5 mi of water from one end to the other. You'll find it in Cheshire County. The nearest mapped water is Robb Reservoir, 1 mi to the south.
Spring puts brook trout in skinny water — 2 to 12 ft is the zone. Summer fish stay in 4 to 12 ft, and winter fish hold in 2 to 12 ft. Summer brook trout concentrate at Deep basin, a prime-rated deep basin around 9 ft. Warm-month bites cluster around early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + 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 | 2 to 12 ft chart-limited; documented 2 to 15 ft | dawn & dusk | Main-lake point (2 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 4 to 12 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (9 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 12 ft chart-limited; documented 2 to 15 ft | midday & dawn | Main-lake point (2 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 12 ft chart-limited; documented 3 to 20 ft | dawn | Deep basin (9 ft) | Small jigging spoon, Tungsten jig + plastic |
In spring, rainbow trout run shallow here, mostly 3 to 12 ft. Summer keeps them at 3 to 12 ft, and they winter in 2 to 12 ft. Break off the point is the standout, a drop-off at roughly 5 ft, rated prime for winter rainbow trout. Time it for early morning and the evening. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
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 chart-limited; documented 5 to 20 ft | dawn & dusk | Break off the point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 3 to 12 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 3 to 12 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (5 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 12 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (5 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. The depth story barely changes: 4 to 12 ft through summer, 4 to 12 ft in winter. The spot to know is Break off the point, a drop-off in about 5 ft of water that rates prime for smallmouth bass in winter. Plan around early morning and the evening in the warm months. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.
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 | dawn & dusk | Main-lake point (2 ft) | Ned rig, Tube jig |
| Summer | 4 to 12 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (5 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 4 to 12 ft chart-limited; documented 8 to 25 ft | midday & dawn | Break off the point (5 ft) | Jerkbait, Blade bait |
| Winter | 4 to 12 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (5 ft) | Blade bait, Hair jig |
4 pieces of structure are mapped here — Deep basin, around 9 ft, is the deepest of them.
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 North Branch Willard Mtn Impon specifically, so confirm the current rules before you fish.
Check the official New Hampshire fishing regulations →
North Branch Willard Mtn Impon is about 12 ft (4 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 brook trout, rainbow trout, smallmouth bass on North Branch Willard Mtn Impon.
Break off the point is the top-rated area: a drop-off in about 5 ft of water that rates prime for smallmouth bass in winter. Scroll up to the map for the complete spot list by species and season.
For brook 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 North Branch Willard Mtn Impon 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.
Robb Reservoir 1 mi · Island Pond 2 mi · Willard Pond 3 mi · Center Pond 4 mi · Gregg Lake 4 mi · TROUT POND (CHESHIRE) 4 mi · Spoonwood Lake 4 mi · Nubanusit Lake 4 mi · Hunts Pond 5 mi · Granite Lake 5 mi · Black Pond 5 mi · Highland Lake 5 mi
See how North Branch Willard Mtn Impon stacks up: best smallmouth bass lakes in New Hampshire · best rainbow trout lakes in New Hampshire · best brook trout lakes in New Hampshire
More water nearby: Cheshire County fishing maps (61 charts). Browse all New Hampshire 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.