Map of Burt Lake with depth contours

Burt Lake

48.2925° N, 91.5628° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Burt Lake is 70 m deep at its deepest point, deeper than 97% of the 2,688 surveyed lakes in Ontario. It covers 7.39 km² and lies 43 km east of Lac la Croix.

Government surveys have recorded 11 fish species here, including walleye, smallmouth bass and lake trout.

Maximum depth
70 m
deeper than 97% of the 2,688 surveyed lakes in Ontario
Area
7.39 km²
larger than 94% of the 18,731 lakes in Ontario
Shoreline
38 km
longer than 94% of the 18,731 lakes in Ontario
Fish species
11
more than 77% of the 2,454 surveyed lakes in Ontario
Elevation
411 m

Today on the water

0 °C

Wind calmfeels like -2 °C

Observed at Atikokan, as of 7:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 7 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Hourly forecast, next 24 hours
Time8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.
Wind km/hvar. 5var. 5SE 10SE 10SE 20SE 20SE 20SE 20
Gusts km/h40404040
Waves (est.) m0.10.10.10.10.2
Temp. °C29141511989
Precip. %00000000

Today: Increasing cloudiness this morning. Wind up to 15 km/h. High 16. Wind chill minus 4 this morning. UV index 3 or moderate.

Weather: Atikokan (local forecast), as of 7:02 a.m. CDT

Sun and moon

Civil dawn
6:46 a.m.
Sunrise
7:17 a.m.
Sunset
6:28 p.m.
Civil dusk
7:00 p.m.
Moonrise
6:10 a.m.
Moonset
5:47 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

9% of Burt Lake is shallower than 3 m, and 32% is deeper than 30 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey records a maximum depth of 70 m, drawn from 128 depth contours.

Not for navigation. Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 25 government surveys (2010–2010) that recorded them.

  • Walleye14 of 25
  • Smallmouth Bass10 of 25
  • Lake Trout9 of 25
  • Burbot6 of 25
  • Rock Bass6 of 25
  • Northern Pike4 of 25
  • Lake Whitefish3 of 25
  • Yellow Perch2 of 25
  • Bluegill1 of 25
Forage fish and other species (2)

Forage fish

  • Spottail Shiner 3

Other

  • White Sucker 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 6 species from Burt Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm84Mercury
Lake Whitefish50-55 cm168Mercury
Northern Pike60-65 cm4Do not eatMercury
Smallmouth Bass35-40 cm84Mercury
Walleye40-45 cm4Do not eatMercury
White Sucker55-60 cm168Mercury

* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide

Fishing regulations: Fisheries Management Zone 5. Check seasons and limits before you fish.