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Map of Muskosung Lake with depth contours

Muskosung Lake

46.4913° N, 80.0449° W

Depth contours from the 1979 government survey. Not for navigation.

Download the depth map (SVG)

Muskosung Lake, Ontario. 46.4913° N, 80.0449° W

Maximum depth 10 m (1979 survey). Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/muskosung-lake/, compiled October 9, 2026

  • Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
  • HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
  • Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
  • Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
  • Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
  • City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Muskosung Lake is 10 m deep at its deepest point, shallower than 71% of the 2,688 surveyed lakes in Ontario. It covers 3.25 km² and lies 3.3 km north of West Nipissing.

Government surveys have recorded 12 fish species here, including yellow perch, walleye and northern pike.

Maximum depth
10 msurveyed 1979
shallower than 71% of the 2,688 surveyed lakes in Ontario
Area
3.25 km²
larger than 87% of the 18,731 lakes in Ontario
Shoreline
15.2 km
longer than 83% of the 18,731 lakes in Ontario
Water clarity
3.4 mSecchi depth, 2025
less clear than 52% of the 1,251 monitored lakes in Ontario
Fish species
12
more than 81% of the 2,454 surveyed lakes in Ontario
Elevation
238 m

Today on the water

4 °C

Partly CloudyWind WNW 9 km/h

Observed at West Nipissing, 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.

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 20NW 20NW 10var. 5SE 10SE 10
Gusts km/h40
Waves (est.) m0.10.20.20.20.1
Temp. °C4481314953
Precip. %3030202020000

Tonight: Mainly cloudy with 30 percent chance of showers. Wind southwest 20 km/h becoming light early this evening. Low plus 4.

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

Sun and moon

Civil dawn
6:59 a.m.
Sunrise
7:29 a.m.
Sunset
6:44 p.m.
Civil dusk
7:14 p.m.
Moonrise
6:21 a.m.
Moonset
6:03 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

North Bay, 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

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 1979 records a maximum depth of 10 m, drawn from 13 depth contours.

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

Fish

Sport fish by the share of the 35 government surveys (2009–2014) that recorded them.

  • Yellow Perch32 of 35
  • Walleye24 of 35
  • Northern Pike16 of 35
  • Pumpkinseed10 of 35
  • Rock Bass10 of 35
  • Smallmouth Bass4 of 35
  • Muskellunge2 of 35
Forage fish and other species (5)

Forage fish

  • Blackchin Shiner 5
  • Golden Shiner 4
  • Common Shiner 1

Other

  • White Sucker 12
  • 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 Muskosung Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm84Mercury
Smallmouth Bass40-45 cm84Mercury
Walleye40-45 cm8Do not eatMercury

* 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 11. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 29 years between 1991 and 2025; the latest annual mean is 3.4 m.

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