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Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
828-acre lake near Northfield. The lake tops out around 46 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
Traced from the shoreline, Bog Lake runs 825 acres with 12.6 miles of edge, with 2 islands in the mix. A development index of 3.1 means a maze of bays and points: far more casting targets than a round bowl of the same size. The shallow band under 15 ft claims about 57% of the surface — that's where the groceries are. Figure 2.8 mi of water from one end to the other, 1.4 mi at the beam. The water lies in Washington County. Closest neighbour on DepthScout: Rocky Lake, 6 mi east of here.
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 3 to 20 ft. Top water on the chart: Break off the point, a drop-off in the 27 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (27 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (4 ft) | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: landlocked salmon in 1 to 15 ft. Midsummer fish sit out in 14 to 46 ft before dropping to 10 to 40 ft for winter. The spot to know is Deep basin, a deep basin in about 45 ft of water that rates prime for landlocked salmon in summer. Plan around early morning and the evening in the warm months. Summer baits: a dodger + streamer down deep or a thin spoon on lead core gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Summer | 14 to 46 ft | dawn & dusk | Deep basin (45 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Fall | 5 to 30 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon at the mouths, Streamers |
| Winter | 10 to 40 ft | dawn | Break off the point (27 ft) | Small jigging spoon, Swedish pimple + smelt |
Early season chain pickerel use the shallows, holding in 2 to 10 ft. Expect a summer slide to 3 to 15 ft, then a winter hold in 5 to 18 ft. Put Shallow bay flat first on the milk run — a weed flat near 4 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a weedless spoon + trailer or a buzzbait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (4 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (4 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Back-bay flat (6 ft) | Jigging spoon (through ice) |
Spring puts smallmouth bass in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 20 to 45 ft. Fall smallmouth bass concentrate at Main-lake point, a prime-rated point around 8 ft. Warm-month bites cluster around early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (27 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (8 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (27 ft) | Blade bait, Hair jig |
Start shallow in spring: white perch sit in 4 to 15 ft that time of year. Warm water sends them out to 15 to 40 ft; cold water stacks them in 14 to 46 ft. Top water on the chart: Deep basin, a deep basin in the 45 ft range, prime in fall. Fish it in early morning and you'll meet the bite. Throw a small spinner rig drifted or a 1/8 oz jigging spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Shallow bay flat (4 ft) | Small jig + curly tail, Inline spinner (silver) |
| Summer | 15 to 40 ft | dawn | Break off the point (27 ft) | Small spinner rig drifted, 1/8 oz jigging spoon |
| Fall | 15 to 45 ft | midday | Deep basin (45 ft) | Jigging spoon (small), Blade bait |
| Winter | 14 to 46 ft | dusk | Deep basin (45 ft) | Small rattle spoon, Tungsten + spikes |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. As the season builds they drop to 3 to 12 ft, wintering in 10 to 25 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (4 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (4 ft) | |
| Fall | 5 to 15 ft | dusk | Back-bay flat (6 ft) | |
| Winter | 10 to 25 ft | midday | Old creek channel (17 ft) |
Bog Lake also holds largemouth bass (8 to 20 ft in summer), pumpkinseed (2 to 10 ft in summer), yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
7 pieces of structure are mapped here — Deep basin, around 45 ft, is the deepest of them.
Access data: Maine GeoLibrary — Boat Launches (Maine IF&W / DACF). Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Maine waters are set by the Maine IFW — and special regulations can apply to Bog Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Bog Lake is about 46 ft (14 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, landlocked salmon, chain pickerel, smallmouth bass, white perch, brown bullhead, largemouth bass, pumpkinseed, yellow perch on Bog Lake.
Deep basin is the top-rated area: a deep basin in about 45 ft of water that rates prime for landlocked salmon in summer. The interactive chart above rates every spot for each 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 Bog Lake is regulated by the Maine IFW. Check the official Maine regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Rocky Lake 6 mi · Hadley Lake 8 mi · Peaked Mountian Pond 8 mi · Gardner Lake 11 mi · Second Chain Lake 12 mi · Crawford Lake 14 mi · Goose Pond 15 mi · Rocky Lake 16 mi · Meddybemps Lake 18 mi · Round Pond 19 mi · Pleasant River Lake 20 mi · Pocomoonshine Lake 20 mi
See how Bog Lake stacks up: best largemouth bass lakes in Maine · best smallmouth bass lakes in Maine · best yellow perch lakes in Maine · best brook trout lakes in Maine
More water nearby: Washington County fishing maps (24 charts). Browse all Maine fishing maps or 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.