Mud Lake Depth Map & Fishing Spots (Algoma District, ON)

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

Next on this water

Spring bug season (brook trout lakes) · forageApr 25 – Jun 30 · in ~8 months

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

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 Mud 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 Mud Lake on the board.

Fishing Mud Lake: what the data says

40-acre lake in Algoma District, Ontario. The lake tops out around 20 ft. The depth data here comes from the Ontario MNRF survey of 1981 (a transect sounding survey). Species by species, here's what the data says the year looks like.

On the chart, Mud Lake draws 40 acres inside 1.7 miles of shoreline. Index 1.9 on the shoreline: a few honest points and pockets, nothing labyrinthine. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. Tip to tip the water measures near 0.5 mi with a 0.3-mi widest point. The water lies in Algoma District. The nearest mapped water is Tee Lake, 1 mi to the southwest.

Brook Trout fishing at Mud Lake

The spring pattern is a shallow one: brook trout in 2 to 15 ft. Midsummer fish sit out in 6 to 20 ft before dropping to 3 to 20 ft for winter. The spot to know is Deep basin, a deep basin in about 18 ft of water that rates prime for brook trout in summer. Plan around early morning and the evening in the warm months. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (3 ft)	Small inline spinner (gold), Tiny spoon
Summer	6 to 20 ft	dawn & dusk	Deep basin (18 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (3 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Deep basin (18 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Count 6 structure marks on this chart. The deepest, Deep basin, sits near 18 ft.

Deep basin: deep basin, around 18 ft
Break off the point: drop-off, around 7 ft
Secondary point: point, around 4 ft
Main-lake point: point, around 3 ft
Back-bay flat: weed flat, around 3 ft
Shallow bay flat: weed flat, around 2 ft

Mud Lake fishing regulations

Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Mud Lake specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Mud Lake?

Mud Lake is about 20 ft (6 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1981 (a transect sounding survey).

What fish are in Mud Lake?

Anglers target brook trout on Mud Lake.

Where is the best fishing spot on Mud Lake?

Deep basin is the top-rated area: a deep basin in about 18 ft of water that rates prime for brook trout in summer. Open the map above to see every rated spot for each species and season.

When is the best time to fish Mud 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 Mud Lake?

Fishing on Mud Lake is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.

Nearby waters

Tee Lake 1 mi · Square Lake 1 mi · Stewleen Lake 2 mi · Sam Lake 2 mi · West Ritchie Lake 2 mi · Winchester Lake 2 mi · Red L. 2 mi · Mount Lake 3 mi · Rottier L. 4 mi · Clara Lake 4 mi · Crystal Lake 4 mi · Reed Lake 4 mi

See how Mud Lake stacks up: best brook trout lakes in Ontario

More water nearby: Algoma District fishing maps (1026 charts). Browse all Ontario 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.