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120-acre lake near Washington. NH GRANIT / NH Fish & Game survey water. The lake tops out around 40 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 the data behind the map says about each species, season by season:
The outline encloses 120 acres, worked by 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. 43% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.9 mi long by 0.3 mi wide at the broadest reach. Sullivan County claims this one. If the bite dies, Ashuelot Pond is 2 mi to the southwest.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Break off the point: a drop-off around 20 ft that scores prime in summer. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (6 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (20 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (6 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (20 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, rainbow trout slide up into 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. Start at Break off the point. It's a drop-off holding about 20 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (20 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (20 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: brown trout in 3 to 25 ft. As the season builds they drop to 12 to 40 ft, wintering in 5 to 35 ft. Top water on the chart: Break off the point, a drop-off in the 20 ft range, prime in summer. Time it for after dark and early morning. Summer baits: a spoon at the thermocline or a deep stickbait (night) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (6 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 12 to 40 ft | night & dawn | Break off the point (20 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Main-lake point (6 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Break off the point (20 ft) | Jigging spoon, Small stickbait (slow) |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 5 ft, rated prime for spring yellow perch. Time it for early morning. 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 (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (40 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Early season smallmouth bass use the shallows, holding in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 12 to 40 ft. Put Break off the point first on the milk run — a drop-off near 20 ft that grades prime for winter. In summer the feeding windows fall in 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 (20 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Break off the point (20 ft) | Jerkbait, Blade bait |
| Winter | 12 to 40 ft | midday | Break off the point (20 ft) | Blade bait, Hair jig |
In spring, pumpkinseed run shallow here, mostly 1 to 8 ft. Midsummer fish sit out in 2 to 10 ft before dropping to 6 to 18 ft for winter. Spring pumpkinseed concentrate at Shallow bay flat, a prime-rated weed flat around 5 ft. Fish it in the evening and early morning and you'll meet the bite. You won't need more than a micro tube or a sponge spider (fly) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (5 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (5 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (5 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Shallow bay flat (5 ft) | Tungsten ice jig + plastic, Tiny spoon |
Millen Lake also holds 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.
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 40 ft.
Access data: New Hampshire Fish & Game — Public Access Sites. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| May 7 | Brown Trout | 200 | — |
| May 7 | Rainbow Trout | 500 | — |
| Apr 16 | Brook Trout | 970 | — |
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 Millen Lake specifically, so confirm the current rules before you fish.
Check the official New Hampshire fishing regulations →
Millen Lake is about 40 ft (12 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 brook trout, rainbow trout, brown trout, yellow perch, smallmouth bass, pumpkinseed, brown bullhead, chain pickerel on Millen Lake.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for yellow perch in spring. Every other rated spot, per species and season, is on the map above.
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.
Yes — per NH Fish & Game stocking report records, Millen Lake was most recently stocked May 7 with 200 brown trout. The full stocking history is listed above.
Fishing on Millen 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.
Ashuelot Pond 2 mi · Halfmoon Pond 2 mi · Long Pond (Lempster) 2 mi · Sand Lake 3 mi · Island Pond (Washington) 3 mi · Highland Lake 4 mi · May Pond 4 mi · SMITH POND (SULLIVAN) 5 mi · COLD SPRING POND 5 mi · NORTH POND 5 mi · White Pond (Windsor) 5 mi · TROUT POND (CHESHIRE) 5 mi
See how Millen Lake stacks up: best smallmouth bass lakes in New Hampshire · best rainbow trout lakes in New Hampshire · best yellow perch lakes in New Hampshire · best brown trout lakes in New Hampshire
More water nearby: Sullivan County fishing maps (24 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.