Map of Charlton Lake with depth contours

Charlton Lake

46.1406° N, 81.6943° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Charlton Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 1.59 km² and lies 3.8 km northeast of Whitefish Falls.

Government surveys have recorded 1 fish species here: walleye.

Maximum depth
21.3 m
deeper than 62% of the 2,688 surveyed lakes in Ontario
Area
1.59 km²
larger than 77% of the 18,731 lakes in Ontario
Shoreline
12.3 km
longer than 79% of the 18,731 lakes in Ontario
Fish species
1
fewer than 100% of the 2,454 surveyed lakes in Ontario
Elevation
190 m

Today on the water

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hNW 15NW 20NW 30NW 20var. 5var. 5E 10SE 10
Gusts km/h50
Waves (est.) m0.10.10.20.10.1
Temp. °C781215151395
Precip. %303020200000

Tonight: Partly cloudy with 30 percent chance of showers. Wind west 40 km/h gusting to 60 becoming northwest 20 gusting to 40 early this evening. Low 7.

Weather: Killarney (local forecast), as of 5:05 a.m. EDT

Sun and moon

Civil dawn
7:05 a.m.
Sunrise
7:35 a.m.
Sunset
6:51 p.m.
Civil dusk
7:21 p.m.
Moonrise
6:28 a.m.
Moonset
6:09 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

14% of Charlton Lake 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 21.3 m, drawn from 17 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

  • WalleyeStocked

Stocking

Walleye14,996 fish in 1 year, most recently 2025

All stocking records (1)
YearSpeciesFishStage
2025Walleye14,996Fry

Eating your catch

The provincial guide to eating fish (2026) sets limits for 4 species from Charlton Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Largemouth Bass35-40 cm124Mercury
Northern Pike55-60 cm84Mercury
Smallmouth Bass35-40 cm84Mercury
Walleye40-45 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.