Georgetown Lake Depth Map & Fishing Spots (MT)

Hatch outlook

Grasshoppers (east-side summer)Active window

Typical here: Jul 1 – Oct 15 · until the hard frosts of mid-October; on the Missouri, August hoppers fish mid-river, not the banks

adultall day in high summer, best when afternoon wind knocks bugs onto the water

Pulls fish to the windward grassy banks and edges for months — fish the bank the wind blows ONTO.

The friendliest crossover of the summer: on lakes, drift the windward bank with a bubble-and-foam-hopper — the bubble's splash doesn't hurt a hopper presentation. On rivers, the same rig dead-drifted along the undercut grass banks, or small gold spinners under the banks between rises.

The event happens over grassy banks, undercut edges and windward shorelines

Spruce MothActive window

Typical here: Jul 20 – Aug 31 · a conifer-forest event — it needs fir and lodgepole on the banks, so it's a Rock Creek / Blackfoot / upper Bitterroot specialty

adultmorning through midday — moths don't enter the water willingly — landings are sporadic and near the conifer banks; fish the imitation LOW in the film with minimal floatant, even fully drowned, with a little movement

When the moths show, just about every run produces — large trout key on them so hard that one pattern carries the whole box for two weeks.

Honest limit: a small drowned-surface moth has no lure analog. The workable rig is a casting bubble with a drowned moth pattern along the timbered banks in the morning; otherwise fish spinners early and late and leave the moth window to the film.

2–3 weeks at best, and day-to-day — fish key on the moths when they show and vanish with them

The event happens over banks under conifers — the moths rarely reach mid-river

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

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Recent catches at Georgetown Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Georgetown Lake on the board.

Fishing Georgetown Lake: what the data says

3,700-acre lake near Anaconda. The lake tops out around 25 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. Every species below gets its seasonal read from the same numbers driving the chart.

Kokanee fishing at Georgetown Lake

Start shallow in spring: kokanee sit in 8 to 25 ft that time of year. They don't go far with the seasons — 8 to 25 ft covers summer, 6 to 25 ft covers winter. The spot to know is Deep basin, a deep basin in about 25 ft of water that rates prime for kokanee in spring. Warm-month bites cluster around early morning. Throw a dodger + pink/orange squid on downrigger or a kokanee bug + corn until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	8 to 25 ft	dawn	Deep basin (25 ft)	Small dodger + squid (pink), Wedding-ring spinner + corn
Summer	8 to 25 ft	dawn	Deep basin (25 ft)	Dodger + pink/orange squid on downrigger, Kokanee bug + corn
Fall	3 to 25 ft	dawn	Deep basin (25 ft)	Dodger + squid (deeper red/purple), Small spoon
Winter	6 to 25 ft	dawn	Deep basin (25 ft)	Small glow jig + corn or maggot, Tiny spoon

Brook Trout fishing at Georgetown Lake

Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 3 to 20 ft. The spot to know is Gravel shoal, a gravel shoal in about 4 ft of water that rates prime for brook trout in fall. Warm-month bites cluster around early morning and the evening. 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	Gravel shoal (4 ft)	Small inline spinner (gold), Tiny spoon
Summer	8 to 25 ft	dawn & dusk	Deep basin (25 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Gravel shoal (4 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Gravel shoal (4 ft)	Small jigging spoon, Tungsten jig + plastic

Lake Trout fishing at Georgetown Lake

Start shallow in spring: lake trout sit in 6 to 25 ft that time of year. They don't go far with the seasons — 8 to 25 ft covers summer, 6 to 25 ft covers winter. Top water on the chart: Deep basin, a deep basin in the 25 ft range, prime in summer. Fish it in early morning and you'll meet the bite. Throw a white tube jig (deep) or a magnum spoon on downrigger until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	6 to 25 ft	dawn & dusk	Gravel shoal (4 ft)	Casting spoon over shoals, Jerkbait (shallow)
Summer	8 to 25 ft	dawn	Deep basin (25 ft)	White tube jig (deep), Magnum spoon on downrigger
Fall	5 to 25 ft	dusk & dawn	Gravel shoal (4 ft)	Heavy casting spoon, Jigging rap over reefs
Winter	6 to 25 ft	dawn	Deep basin (25 ft)	White tube jig, Airplane jig

Cutthroat Trout fishing at Georgetown Lake

Early season cutthroat trout use the shallows, holding in 3 to 15 ft. Expect a summer slide to 7 to 25 ft, then a winter hold in 6 to 25 ft. Put Break off the point first on the milk run — a drop-off near 15 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a trolled spoon (small) or an inline spinner and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 15 ft	dawn & dusk	Gravel shoal (4 ft)	Inline spinner (silver/gold), Small spoon
Summer	7 to 25 ft	dawn & dusk	Break off the point (15 ft)	Trolled spoon (small), Inline spinner
Fall	5 to 25 ft	dawn & dusk	Gravel shoal (4 ft)	Casting spoon, Inline spinner
Winter	6 to 25 ft	dawn	Break off the point (15 ft)	Small jigging spoon, Marabou jig

Rainbow Trout fishing at Georgetown Lake

The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. As the season builds they drop to 7 to 25 ft, wintering in 5 to 25 ft. Top water on the chart: Break off the point, a drop-off in the 15 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	5 to 20 ft	dawn & dusk	Gravel shoal (4 ft)	Inline spinner (silver), Small spoon
Summer	7 to 25 ft	dawn & dusk	Break off the point (15 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	7 to 25 ft	dawn & dusk	Gravel shoal (4 ft)	Casting spoon, Jerkbait over shoals
Winter	5 to 25 ft	dawn	Break off the point (15 ft)	Jigging spoon, Tube jig (white)

Notable structure

Structure-wise the chart holds 12 features, led in depth by Deep basin at roughly 25 ft.

Deep basin: deep basin, around 25 ft
Shallow feeding flat: feeding flat, around 20 ft
Shallow feeding flat: feeding flat, around 16 ft
Break off the point: drop-off, around 15 ft
Sharp break: drop-off, around 11 ft
Gravel shoal: gravel shoal, around 4 ft
Gravel shoal: gravel shoal, around 4 ft
Shoreline point: point, around 4 ft
Main-lake point: point, around 1 ft
Secondary point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft

Public access & boat ramps

Stuart Mill Bay — ramp (gravel)

Access data: Montana FWP — Fishing Access Sites. Confirm conditions and fees locally before you launch.

Georgetown Lake fishing regulations

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 Georgetown Lake specifically, so confirm the current rules before you fish.

Check the official Montana fishing regulations →

Common questions

How deep is Georgetown Lake?

Georgetown Lake is about 25 ft (8 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.

What fish are in Georgetown Lake?

Anglers target kokanee, brook trout, lake trout, cutthroat trout, rainbow trout on Georgetown Lake.

Where is the best fishing spot on Georgetown Lake?

Deep basin is the top-rated area: a deep basin in about 25 ft of water that rates prime for kokanee in spring. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Georgetown Lake?

For kokanee, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.

What are the fishing regulations for Georgetown Lake?

Fishing on Georgetown Lake 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.

Nearby waters

Echo Lake (Granite) 3 mi · Upper Seymour Lake 11 mi · Rainbow Lake (Deer Lodge) 18 mi · Mystic Lake 26 mi · Mussigbrod Lake 32 mi · Lily Lake (Beaverhead) 39 mi · Sand Lake 39 mi · Beavertail Pond 40 mi · Baldy Lake 41 mi · Bitterroot River 46 mi · Bear Lake (Beaverhead) 47 mi · Nevada Reservoir 48 mi

See how Georgetown Lake stacks up: best rainbow trout lakes in Montana · best lake trout lakes in Montana · best brook trout lakes in Montana · best kokanee lakes in Montana

Browse all Montana 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.