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43-acre lake in Lincoln County, Montana. The lake tops out around 30 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.
Long Lake (Lincoln) maps at 40 acres behind 1.8 miles of shoreline. With a 2.1 development index there's bank structure worth casting at, in moderation. 60% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Call it 0.8 mi long by 0.2 mi wide at the broadest reach. It sits in Lincoln County. If the bite dies, Rock Lake is 1 mi to the northwest.
Spring brook trout on Long Lake (Lincoln) hold shallow, usually 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. The chart's best answer is Deep basin — deep basin, 30 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with a small spoon fished deep or a trolled lake-clear wobbler + worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | open water | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Deep basin (30 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | open water | Small jigging spoon, Tungsten jig + plastic |
The spring pattern is a shallow one: lake whitefish in 9 to 30 ft. The depth story barely changes: 9 to 30 ft through summer, 9 to 30 ft in winter. Top water on the chart: Deep basin, a deep basin in the 30 ft range, prime in summer. Time it for early morning. Summer baits: a blade bait vertical or a small jigging spoon 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 | 9 to 30 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (30 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 9 to 30 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (30 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 9 to 30 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (30 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Spring puts cutthroat trout in skinny water — 3 to 15 ft is the zone. Warm water sends them out to 9 to 30 ft; cold water stacks them in 8 to 30 ft. Break off the point is the standout, a drop-off at roughly 30 ft, rated prime for summer cutthroat trout. Plan around early morning and the evening in the warm months. A trolled spoon (small) or an inline spinner 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 | 3 to 15 ft | dawn & dusk | open water | Inline spinner (silver/gold), Small spoon |
| Summer | 9 to 30 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (30 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (23 ft) | Casting spoon, Inline spinner |
| Winter | 8 to 30 ft chart-limited; documented 10 to 40 ft | dawn | Break off the point (30 ft) | Small jigging spoon, Marabou jig |
Long Lake (Lincoln) carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 30 ft down.
Season dates, license requirements, and size and bag limits for Montana waters are set by the Montana Fish, Wildlife & Parks — and special regulations can apply to Long Lake (Lincoln) specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Long Lake (Lincoln) is about 30 ft (9 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, lake whitefish, cutthroat trout on Long Lake (Lincoln).
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for lake whitefish in summer. 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.
Fishing on Long Lake (Lincoln) is regulated by the Montana Fish, Wildlife & Parks. Check the official Montana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Rock Lake 1 mi · Frank Lake 1 mi · Glen Lake 4 mi · Murphy Lake 9 mi · Martin Lake (Lincoln) 9 mi · BIG THERRIAULT LAKE 9 mi · Little Therriault Lake 10 mi · Tetrault Lake 10 mi · Moran Lake 11 mi · Dickey Lake (Lincoln) 11 mi · Sophie Lake 11 mi · Shotnana Lake 14 mi, BC
See how Long Lake (Lincoln) stacks up: best brook trout lakes in Montana · best lake whitefish lakes in Montana · best cutthroat trout lakes in Montana
More water nearby: Lincoln County fishing maps (28 charts). Browse all Montana 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.