Map of Lauzon Lake with depth contours

Lauzon Lake

46.212° N, 82.8227° W

Depth contours from the 1972 government survey. Not for navigation.

Download the depth map (SVG)

Lauzon Lake is 79 m deep at its deepest point, deeper than 98% of the 2,688 surveyed lakes in Ontario. It covers 22.1 km² and lies beside Algoma Mills.

Government surveys have recorded 24 fish species here, including yellow perch, rock bass and cisco.

Maximum depth
79 msurveyed 1972
deeper than 98% of the 2,688 surveyed lakes in Ontario
Area
22.1 km²
larger than 98% of the 18,731 lakes in Ontario
Shoreline
92.5 km
longer than 98% of the 18,731 lakes in Ontario
Water clarity
7.1 mSecchi depth, 2025
clearer than 96% of the 1,251 monitored lakes in Ontario
Fish species
24
more than 98% of the 2,454 surveyed lakes in Ontario
Elevation
179 m

Today on the water

10 °C

CloudyWind SSW 15 km/h

Observed at Blind River, as of 4:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.3 m. Around 8 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hNW 10NW 20NW 20NW 10var. 5var. 5SE 10E 10
Gusts km/h40
Waves (est.) m0.20.30.30.20.1
Temp. °C7711141614104
Precip. %30202000000

Tonight: Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm after midnight. Low 7.

Weather: Blind River (local forecast), as of 4:01 a.m. EDT

Sun and moon

Civil dawn
7:10 a.m.
Sunrise
7:40 a.m.
Sunset
6:55 p.m.
Civil dusk
7:25 p.m.
Moonrise
6:32 a.m.
Moonset
6:14 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

28% of Lauzon Lake 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 from 1972 records a maximum depth of 79 m, drawn from 85 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 83 government surveys (2008–2013) that recorded them.

  • Yellow Perch43 of 83
  • Rock Bass36 of 83
  • Cisco27 of 83
  • Smallmouth Bass27 of 83
  • Lake Trout20 of 83
  • Burbot7 of 83
  • Pumpkinseed7 of 83
  • Lake Whitefish5 of 83
  • Northern Pike4 of 83
  • Chinook Salmon1 of 83
  • Coho Salmon1 of 83
  • Largemouth Bass1 of 83
  • Muskellunge1 of 83
Forage fish and other species (11)

Forage fish

  • Rainbow Smelt 17
  • Bluntnose Minnow 14
  • Common Shiner 11
  • Lake Chub 4
  • Slimy Sculpin 4
  • Logperch 3
  • Longnose Dace 2
  • Brook Stickleback 1
  • Creek Chub 1

Other

  • White Sucker 3
  • Brown Bullhead 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 3 species from Lauzon Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm168Mercury
Northern Pike40-45 cm1616Precautionary
Smallmouth Bass35-40 cm124Mercury

* 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 10. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 5 years between 2017 and 2025; the latest annual mean is 7.1 m.

Water clarity (Secchi depth, m)
Total phosphorus (µg/L)

Getting on the water

1 listed boat launch. marks launches on the map.