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Rating depth structure for smallmouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
5,430-acre lake near Sakom Township. The lake tops out around 66 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
Drawn out, this is 5,422 acres of water rimmed by 42.3 miles of bank, broken up by 23 islands. The 4.1 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 29% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 9.2 mi of water from one end to the other, 2.3 mi at the beam. You'll find it in Washington County. The nearest mapped water is Middle Chain Lake, 4 mi to the southwest.
When the water first warms, chain pickerel slide up into 2 to 10 ft. Summer is a 3 to 15 ft game here, winter a 5 to 18 ft one. Start at Shallow bay flat. It's a weed flat holding about 7 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a weedless spoon + trailer or a buzzbait rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (7 ft) | Inline spinner (silver), Small spoon (red/white) |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (7 ft) | Weedless spoon + trailer, Buzzbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (7 ft) | Jerkbait along weed edges, Spinnerbait |
| Winter | 5 to 18 ft | dawn | Shallow bay flat (7 ft) | Jigging spoon (through ice) |
Early season lake whitefish use the shallows, holding in 15 to 45 ft. Summer is a 20 to 66 ft game here, winter a 20 to 66 ft one. The chart's best answer is Deep basin — deep basin, 60 ft, prime for summer. Best bite is early morning. Tie on a blade bait vertical or a small jigging spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (42 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 20 to 66 ft | dawn | Deep basin (60 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (7 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 20 to 66 ft | midday & dawn | Deep basin (60 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring puts landlocked salmon in skinny water — 1 to 15 ft is the zone. As the season builds they drop to 25 to 60 ft, wintering in 10 to 40 ft. Spring landlocked salmon concentrate at Creek inflow, a prime-rated inflow / creek mouth around 14 ft. Warm-month bites cluster around early morning and the evening. A dodger + streamer down deep or a thin spoon on lead core covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 15 ft | dawn & dusk | Creek inflow (14 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Summer | 25 to 60 ft | dawn & dusk | Deep basin (60 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Fall | 5 to 30 ft | dawn & dusk | Creek inflow (14 ft) | Casting spoon at the mouths, Streamers |
| Winter | 10 to 40 ft | dawn | Break off the point (42 ft) | Small jigging spoon, Swedish pimple + smelt |
Start shallow in spring: smallmouth bass sit in 3 to 12 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 20 to 45 ft. Top water on the chart: Rock reef, a rock pile in the 7 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. Throw a drop shot (goby/minnow) or a ned rig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Rock reef (7 ft) | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Rock reef (7 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (14 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Break off the point (42 ft) | Blade bait, Hair jig |
In spring, white perch run shallow here, mostly 4 to 15 ft. Summer pushes them deeper, 15 to 40 ft, and winter fish settle into 20 to 50 ft. Creek inflow is the standout, an inflow / creek mouth at roughly 14 ft, rated prime for spring white perch. Time it for early morning. You won't need more than a small spinner rig drifted or a 1/8 oz jigging spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk | Creek inflow (14 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 (42 ft) | Jigging spoon (small), Blade bait |
| Winter | 20 to 50 ft | dusk | Break off the point (42 ft) | Small rattle spoon, Tungsten + spikes |
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. Creek inflow is the standout, an inflow / creek mouth at roughly 14 ft, rated prime for spring brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Creek inflow (14 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Creek inflow (14 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Creek inflow (14 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Creek inflow (14 ft) | Small jigging spoon, Tungsten jig + plastic |
Lower Sysladobsis Lake also holds brown bullhead (3 to 12 ft in summer), burbot (20 to 66 ft in summer), lake trout (20 to 66 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.
Structure-wise the chart holds 16 features, led in depth by Deep basin at roughly 60 ft.
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 Lower Sysladobsis Lake specifically, so confirm the current rules before you fish.
Check the official Maine fishing regulations →
Lower Sysladobsis Lake is about 66 ft (20 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 chain pickerel, lake whitefish, landlocked salmon, smallmouth bass, white perch, brook trout, brown bullhead, burbot, lake trout, pumpkinseed, yellow perch on Lower Sysladobsis Lake.
Shallow bay flat is the top-rated area: a weed flat in about 7 ft of water that rates prime for chain pickerel in spring. Open the map above to see every rated spot for each species and season.
For chain pickerel, 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 Lower Sysladobsis 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.
Middle Chain Lake 4 mi · Upper Chain Lake 4 mi · Upper Sysladobsis Lake 7 mi · Fourth Machias Lake 7 mi · West Grand Lake 7 mi · Duck Lake 8 mi · Pleasant Lake 9 mi · Wabassus Lake 9 mi · Spring Lake 10 mi · Gassabias Lake 10 mi · Lower Pistol Lake 11 mi · West Musquash Lake 11 mi
See how Lower Sysladobsis Lake stacks up: best smallmouth bass lakes in Maine · best yellow perch lakes in Maine · best lake trout 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.