Mash Lake Depth Map & Fishing Spots (ON)

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 Mash 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 Mash Lake on the board.

Fishing Mash Lake: what the data says

38-acre lake in Algoma District, Ontario. The lake tops out around 72 ft. The depth data here comes from the Ontario MNRF survey of 1981 (a transect sounding survey). The exact depth survey is published on its own because no defensible water-specific species roster was found.

Traced from the shoreline, Mash Lake runs 39 acres with 2.8 miles of edge — 2 islands included. An index of 3.2 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. 61% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 0.8 mi end to end and 0.3 mi across at its widest. You'll find it in Algoma District. Closest neighbour on DepthScout: Black Lake, 3 mi northeast of here.

Notable structure

Count 5 structure marks on this chart. The deepest, Deep basin, sits near 66 ft.

Deep basin: deep basin, around 66 ft
Secondary point: point, around 18 ft
Break off the point: drop-off, around 7 ft
Main-lake point: point, around 4 ft
Shallow bay flat: weed flat, around 4 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Mash Lake?

Mash Lake is about 72 ft (22 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 Mash Lake?

No official water-specific fish survey, inspected stocking record, reported-catch roster, or species-bearing fisheries classification was found for Mash Lake. Its depth chart is still a real survey; species and fishing spots are intentionally left unclaimed.

What are the fishing regulations for Mash Lake?

Fishing on Mash 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

Black Lake 3 mi · Hardtime Lake 3 mi · Old Woman Lake 3 mi · Slievert Lake 4 mi · Wildcat Lake 5 mi · Dead Otter Lake 5 mi · Gamitagama Lake 5 mi · Belanger Lake 5 mi · Doc Greig Lake 7 mi · Gargantua Lake 7 mi · Buckshot Lake 7 mi · Fife Lake 7 mi

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.