Lewis Pond South Depth Map & Fishing Spots (MT)

Target species

Species estimated from nearby surveyed lakes. No fish-species survey is on record for this water, so these species aren't a confirmed catch list. They're an informed estimate: the species listed for the nearest surveyed lakes in the same region, kept only where they fit this lake's depth and habitat. Treat them as what's likely present. (The depth chart itself is real surveyed bathymetry.) How we estimate species →

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.

Loading depth chart…

Recent catches at Lewis Pond South

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 Lewis Pond South on the board.

Fishing Lewis Pond South: what the data says

12-acre lake in Cascade County, Montana. The lake tops out around 7 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's the year, species by species, as the scoring engine sees it.

The drawn water covers 12 acres wrapped in 0.5 miles of bank. At index 1.1 the outline is almost a bowl — read the depth changes, not the shoreline. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. It sits in Cascade County. If the bite dies, Wadsworth Lake is 12 mi to the east.

Brook Trout fishing at Lewis Pond South

Come spring, look for brook trout tight to the bank in 1 to 7 ft. Through summer count on 2 to 7 ft; the winter hold is 1 to 7 ft. Start at Deep basin. It's a deep basin holding about 6 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 7 ft	dawn & dusk	Main-lake point (2 ft)	Small inline spinner (gold), Tiny spoon
Summer	2 to 7 ft	dawn & dusk	Deep basin (6 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	1 to 7 ft	midday & dawn	Main-lake point (2 ft)	Small spoon (orange), Spinner
Winter	1 to 7 ft	dawn	Deep basin (6 ft)	Small jigging spoon, Tungsten jig + plastic

Rainbow Trout fishing at Lewis Pond South

When the water first warms, rainbow trout slide up into 2 to 7 ft. There's no big seasonal slide here — summer means 2 to 7 ft, winter 1 to 7 ft. If you only fish one area, make it Break off the point: a drop-off around 4 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 7 ft	dawn & dusk	Main-lake point (2 ft)	Inline spinner (silver), Small spoon
Summer	2 to 7 ft	dawn & dusk	Break off the point (4 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	2 to 7 ft	dawn & dusk	Main-lake point (2 ft)	Casting spoon, Jerkbait over shoals
Winter	1 to 7 ft	dawn	Break off the point (4 ft)	Jigging spoon, Tube jig (white)

Cutthroat Trout fishing at Lewis Pond South

The spring pattern is a shallow one: cutthroat trout in 1 to 7 ft. The depth story barely changes: 2 to 7 ft through summer, 2 to 7 ft in winter. The spot to know is Break off the point, a drop-off in about 4 ft of water that rates prime for cutthroat trout in summer. Plan around early morning and the evening in the warm months. Summer baits: a trolled spoon (small) or an inline spinner gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 7 ft	dawn & dusk	Main-lake point (2 ft)	Inline spinner (silver/gold), Small spoon
Summer	2 to 7 ft	dawn & dusk	Break off the point (4 ft)	Trolled spoon (small), Inline spinner
Fall	1 to 7 ft	dawn & dusk	Main-lake point (2 ft)	Casting spoon, Inline spinner
Winter	2 to 7 ft	dawn	Break off the point (4 ft)	Small jigging spoon, Marabou jig

Walleye fishing at Lewis Pond South

The spring pattern is a shallow one: walleye in 2 to 7 ft. The depth story barely changes: 2 to 7 ft through summer, 2 to 7 ft in winter. The spot to know is Break off the point, a drop-off in about 4 ft of water that rates prime for walleye in fall. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 7 ft	dusk & dawn	Main-lake point (2 ft)	1/8 oz jig + minnow, Hair jig
Summer	2 to 7 ft	dusk & dawn	Break off the point (4 ft)	Crawler harness on bottom bouncer, Deep crankbait (trolled)
Fall	2 to 7 ft	dusk & night	Break off the point (4 ft)	Jigging rap, Jig + big minnow
Winter	2 to 7 ft	dusk & dawn	Deep basin (6 ft)	Jigging spoon + minnow head, Rattle bait

Yellow Perch fishing at Lewis Pond South

In spring, yellow perch run shallow here, mostly 2 to 7 ft. Summer keeps them at 2 to 7 ft, and they winter in 2 to 7 ft. Fall yellow perch concentrate at Deep basin, a prime-rated deep basin around 6 ft. Fish it in early morning and you'll meet the bite. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 7 ft	midday & dawn	open water	Small jig + curly tail, Perch-pattern micro crank
Summer	2 to 7 ft	dawn	Deep basin (6 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	2 to 7 ft	midday	Deep basin (6 ft)	Jigging spoon (small), Perch rig / spreader
Winter	2 to 7 ft	midday & dawn	Deep basin (6 ft)	Tungsten jig + spikes, Rattle spoon (small)

Northern Pike fishing at Lewis Pond South

Early season northern pike use the shallows, holding in 2 to 7 ft. Even in summer they hold at 2 to 7 ft; winter keeps them in 2 to 7 ft. The chart's best answer is Break off the point — drop-off, 4 ft, prime for fall. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 7 ft	midday & dawn	open water	#5 inline spinner, Spoon (red/white)
Summer	2 to 7 ft	dawn & dusk	Break off the point (4 ft)	Bucktail, Weedless spoon over cabbage
Fall	2 to 7 ft	midday & dawn	Break off the point (4 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	2 to 7 ft	midday	Main-lake point (2 ft)	Tip-ups, Large jigging spoon

Notable structure

Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 6 ft.

Deep basin: deep basin, around 6 ft
Break off the point: drop-off, around 4 ft
Main-lake point: point, around 2 ft

Lewis Pond South 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 Lewis Pond South specifically, so confirm the current rules before you fish.

Check the official Montana fishing regulations →

Common questions

How deep is Lewis Pond South?

Lewis Pond South is about 7 ft (2 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 Lewis Pond South?

Anglers target brook trout, rainbow trout, cutthroat trout, walleye, yellow perch, northern pike on Lewis Pond South. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species listed for the nearest surveyed lakes in the region, filtered to this lake's depth and habitat.

Where is the best fishing spot on Lewis Pond South?

Break off the point is the top-rated area: a drop-off in about 4 ft of water that rates prime for cutthroat trout in summer. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Lewis Pond South?

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 Lewis Pond South?

Fishing on Lewis Pond South 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

Wadsworth Lake 12 mi · Gollaher Reservoir 22 mi · Missouri River 27 mi · Hound Creek Reservoir 37 mi · Willow Creek Reservoir 38 mi · Pishkun Reservoir 40 mi · Bean Lake 40 mi · Split Rock Lake 42 mi · Tunnel Lake 45 mi · Gibson Reservoir 55 mi · Heart Lake (Lewis and Clark) 55 mi · Ostle Reservoir 55 mi

See how Lewis Pond South stacks up: best walleye lakes in Montana · best northern pike lakes in Montana · best rainbow trout lakes in Montana · best yellow perch lakes in Montana

More water nearby: Cascade County fishing maps (5 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.