Map of Adelaide Lake with depth contours

Adelaide Lake

47.06° N, 84.3053° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Adelaide Lake is 45.7 m deep at its deepest point, deeper than 92% of the 2,688 surveyed lakes in Ontario. It covers 1.74 km² and lies 18 km north of Jones Landing.

Government surveys have recorded 7 fish species here, including rock bass and lake trout.

Maximum depth
45.7 m
deeper than 92% of the 2,688 surveyed lakes in Ontario
Area
1.74 km²
larger than 78% of the 18,731 lakes in Ontario
Shoreline
16.6 km
longer than 85% of the 18,731 lakes in Ontario
Fish species
7
more than 61% of the 2,454 surveyed lakes in Ontario
Elevation
354 m

Today on the water

5 °C

Mostly CloudyWind NNW 7 km/h

Observed at Montreal River Harbour, 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/hNW 10NW 20W 10W 10var. 5SE 10SE 10SE 15
Waves (est.) m0.10.20.10.10.1
Temp. °C8581314967
Precip. %30101000000

Tonight: Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm after midnight. Wind northwest 20 km/h gusting to 40 becoming light after midnight. Low plus 5.

Weather: Montreal River Harbour (local forecast), as of 4:00 a.m. EDT

Sun and moon

Civil dawn
7:16 a.m.
Sunrise
7:47 a.m.
Sunset
7:00 p.m.
Civil dusk
7:31 p.m.
Moonrise
6:39 a.m.
Moonset
6:19 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Sault Ste. Marie, as of 4:00 a.m. EDT

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

17% of Adelaide Lake is deeper than 20 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 45.7 m, drawn from 35 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 21 government surveys (2008–2008) that recorded them.

  • Rock Bass13 of 21
  • Lake Trout10 of 21
Forage fish and other species (5)

Forage fish

  • Common Shiner 3
  • Creek Chub 2
  • Golden Shiner 2
  • Fathead Minnow 1

Other

  • White Sucker 12

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Adelaide Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Brook Trout30-35 cm1612Precautionary
Lake Trout50-55 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.