Map of Lac Como with depth contours

Lac Como

47.9164° N, 83.5158° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Lac Como is 27.4 m deep at its deepest point, deeper than 74% of the 2,688 surveyed lakes in Ontario. It covers 16.2 km² and lies 11 km northwest of Chapleau.

Government surveys have recorded 12 fish species here, including walleye, lake whitefish and smallmouth bass.

Maximum depth
27.4 m
deeper than 74% of the 2,688 surveyed lakes in Ontario
Area
16.2 km²
larger than 97% of the 18,731 lakes in Ontario
Shoreline
34.6 km
longer than 93% of the 18,731 lakes in Ontario
Fish species
12
more than 81% of the 2,454 surveyed lakes in Ontario
Elevation
455 m

Today on the water

5.5 °C

ClearWind W 7 km/h

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

choppy Estimated waves, next 12 hours: up to 0.2 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/hW 10NW 20NW 20W 20W 10var. 5SE 10SE 10
Waves (est.) m0.10.20.20.2
Temp. °C3261011630
Precip. %303020200000

Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50 becoming light late this evening. Low plus 2.

Weather: Chapleau (local forecast), as of 4:00 a.m. EDT

Sun and moon

Civil dawn
7:13 a.m.
Sunrise
7:44 a.m.
Sunset
6:57 p.m.
Civil dusk
7:28 p.m.
Moonrise
6:36 a.m.
Moonset
6:15 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

49% of Lac Como is deeper than 10 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 27.4 m, drawn from 14 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 38 government surveys (2011–2011) that recorded them.

  • Walleye30 of 38
  • Lake Whitefish25 of 38
  • Smallmouth Bass15 of 38
  • Yellow Perch15 of 38
  • Northern Pike5 of 38
  • Burbot1 of 38
  • Lake Trout1 of 38
Forage fish and other species (5)

Forage fish

  • Trout-Perch 9
  • Lake Chub 1
  • Slimy Sculpin 1

Other

  • White Sucker 5
  • Longnose Sucker 1

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 5 species from Lac Como. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm8Do not eatMercury, PCB
Lake Whitefish45-50 cm124Mercury
Northern Pike55-60 cm124Mercury, PFAS
Smallmouth Bass35-40 cm164Mercury
Walleye40-45 cm124Mercury, PFAS

* 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 7. Check seasons and limits before you fish.

Getting on the water

1 listed boat launch. marks launches on the map.