Mussigbrod 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 Mussigbrod 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 Mussigbrod Lake on the board.

Fishing Mussigbrod Lake: what the data says

156-acre lake in Beaverhead County, Montana. The lake tops out around 69 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. Here is how the season plays out for each species, straight from the data behind the map.

On the chart, Mussigbrod Lake draws 156 acres inside 2.1 miles of shoreline. Nearly circular (index 1.2), so the story is the bottom, not the bank. About 30% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. End to end it runs roughly 0.9 mi, about 0.3 mi across. The water lies in Beaverhead County. The nearest mapped water is Mystic Lake, 6 mi to the northeast.

Brook Trout fishing at Mussigbrod Lake

In spring, brook trout run shallow here, mostly 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. Spring brook trout concentrate at Main-lake point, a prime-rated point around 9 ft. Fish it in early morning and the evening and you'll meet the bite. 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	Main-lake point (9 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Break off the point (33 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (9 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Shallow bay flat (10 ft)	Small jigging spoon, Tungsten jig + plastic

Arctic Grayling fishing at Mussigbrod Lake

In spring, arctic grayling run shallow here, mostly 2 to 10 ft. Midsummer fish sit out in 3 to 15 ft before dropping to 8 to 25 ft for winter. Spring arctic grayling concentrate at Shallow bay flat, a good-rated weed flat around 10 ft. Fish it in the evening and early morning and you'll meet the bite. You won't need more than a dry fly (parachute adams, elk hair caddis) or a small inline spinner most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	midday & dusk	Shallow bay flat (10 ft)	1/16 oz spinner (silver), Small dry fly (Adams, Griffith's)
Summer	3 to 15 ft	dusk & dawn	Shallow bay flat (10 ft)	Dry fly (parachute Adams, elk hair caddis), Small inline spinner
Fall	6 to 20 ft	midday	Break off the point (33 ft)	Small spoon, Beadhead nymph under indicator
Winter	8 to 25 ft	midday & dawn	Deep basin (67 ft)	Tungsten jig + waxworm, Small jigging spoon (gold)

Burbot fishing at Mussigbrod Lake

Spring puts burbot in skinny water — 21 to 69 ft is the zone. Summer fish stay in 21 to 69 ft, and winter fish hold in 15 to 60 ft. Spring burbot concentrate at Deep basin, a prime-rated deep basin around 67 ft. Warm-month bites cluster around after dark and midday. A heavy jig + cut bait covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	21 to 69 ft	night & dusk	Deep basin (67 ft)	Glow jigging spoon + cut bait, Rattle bait (dark)
Summer	21 to 69 ft	night & midday	Deep basin (67 ft)	Heavy jig + cut bait
Fall	21 to 69 ft	night & dusk	Deep basin (67 ft)	Glow spoon + minnow head, Blade bait (slow)
Winter	15 to 60 ft	night & dusk	Deep basin (67 ft)	Glow tungsten + cut bait, Rattle spoon + minnow head

Notable structure

The chart marks 6 structure features on Mussigbrod Lake; the deepest is Deep basin at about 67 ft.

Deep basin: deep basin, around 67 ft
Break off the point: drop-off, around 33 ft
Shallow bay flat: weed flat, around 10 ft
Main-lake point: point, around 9 ft
Back-bay flat: weed flat, around 6 ft
Secondary point: point, around 4 ft

Public access & boat ramps

Boat launch — ramp

Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.

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

Check the official Montana fishing regulations →

Common questions

How deep is Mussigbrod Lake?

Mussigbrod Lake is about 69 ft (21 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 Mussigbrod Lake?

Anglers target brook trout, arctic grayling, burbot on Mussigbrod Lake.

Where is the best fishing spot on Mussigbrod Lake?

Deep basin is the top-rated area: a deep basin in about 67 ft of water that rates prime for burbot in spring. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Mussigbrod Lake?

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.

What are the fishing regulations for Mussigbrod Lake?

Fishing on Mussigbrod 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

Mystic Lake 6 mi · Rainbow Lake (Deer Lodge) 14 mi · Lily Lake (Beaverhead) 18 mi · Sand Lake 20 mi · Baldy Lake 21 mi · Upper Seymour Lake 24 mi · Bear Lake (Beaverhead) 27 mi · Twin Lakes (Beaverhead) 27 mi · Georgetown Lake 32 mi · Lower Miner Lakes 33 mi · Echo Lake (Granite) 35 mi · Tendoy Lake 37 mi

See how Mussigbrod Lake stacks up: best brook trout lakes in Montana · best burbot lakes in Montana · best arctic grayling lakes in Montana

More water nearby: Beaverhead County fishing maps (24 charts). 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.