Oregon Lake, Middle 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 Oregon Lake, Middle

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 Oregon Lake, Middle on the board.

Fishing Oregon Lake, Middle: what the data says

22-acre lake in Mineral County, Montana. The lake tops out around 100 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. The season-by-season read for each species follows, from the map's own numbers.

Oregon Lake, Middle maps at 26 acres behind 0.9 miles of shoreline. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. Littoral water — the productive band under ~15 ft — makes up 3% of this chart. Tip to tip the water measures near 0.3 mi with a 0.2-mi widest point. It sits in Mineral County. Bonanza Lake, Upper sits 3 mi northwest — the closest neighbouring chart.

Brook Trout fishing at Oregon Lake, Middle

Come spring, look for brook trout tight to the bank in 2 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 3 to 20 ft. 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	2 to 15 ft	dawn & dusk	open water	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	open water	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

Notable structure

Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 100 ft.

Deep basin: deep basin, around 100 ft
Break off the point: drop-off, around 98 ft
Main-lake point: point, around 30 ft

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

Check the official Montana fishing regulations →

Common questions

How deep is Oregon Lake, Middle?

Oregon Lake, Middle is about 100 ft (30 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 Oregon Lake, Middle?

Anglers target brook trout on Oregon Lake, Middle.

When is the best time to fish Oregon Lake, Middle?

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 Oregon Lake, Middle?

Fishing on Oregon Lake, Middle 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

Bonanza Lake, Upper 3 mi · Lost Lake (Mineral) 4 mi · Hoodoo Lake 7 mi · Cliff Lake (Mineral) 8 mi · Diamond Lake (Mineral) 8 mi · Hidden Lake (Mineral) 9 mi · French Lake 9 mi · Pearl Lake 10 mi · Trio Lakes 11 mi · Moore Lake (Mineral) 12 mi · Crater Lake 13 mi · Siamese Lake, Upper 16 mi

See how Oregon Lake, Middle stacks up: best brook trout lakes in Montana

More water nearby: Mineral County fishing maps (19 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.