Map of Muskrat Lake

Muskrat Lake

45.6746° N, 76.9085° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Muskrat Lake covers 12.5 km², making it larger than 96% of the 18,731 lakes in Ontario. It lies beside Cobden.

Government surveys have recorded 17 fish species here, including yellow perch, northern pike and smallmouth bass.

Area
12.5 km²
larger than 96% of the 18,731 lakes in Ontario
Shoreline
34.3 km
longer than 93% of the 18,731 lakes in Ontario
Water clarity
1.8 mSecchi depth, 2018
less clear than 90% of the 1,251 monitored lakes in Ontario
Fish species
17
more than 93% of the 2,454 surveyed lakes in Ontario
Elevation
123 m

Today on the water

rough Estimated waves, next 12 hours: up to 0.6 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.5 a.m.8 a.m.
Wind km/hW 15NW 30NW 30NW 15NW 10var. 5var. 5var. 5
Gusts km/h5050
Waves (est.) m0.20.60.60.3
Temp. °C81112840-10
Precip. %404020200000

Today: A mix of sun and cloud. 40 percent chance of showers this morning and early this afternoon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 12. UV index 3 or moderate.

Weather: Pembroke (local forecast), as of 10:05 a.m. EDT

Sun and moon

Civil dawn
6:46 a.m.
Sunrise
7:16 a.m.
Sunset
6:32 p.m.
Civil dusk
7:02 p.m.
Moonrise
6:07 a.m.
Moonset
5:51 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.

Fish

Sport fish by the share of the 24 government surveys (2009–2009) that recorded them.

  • Yellow Perch18 of 24
  • Northern Pike15 of 24
  • Smallmouth Bass8 of 24
  • Walleye7 of 24
  • Lake TroutStocked6 of 24
  • Lake Sturgeon3 of 24
  • Pumpkinseed3 of 24
  • Rock Bass3 of 24
  • Black Crappie1 of 24
  • Channel Catfish1 of 24
  • Largemouth Bass1 of 24
Forage fish and other species (6)

Forage fish

  • Logperch 4
  • Spottail Shiner 3
  • Rainbow Smelt 2

Other

  • White Sucker 10
  • Brown Bullhead 5
  • Longnose Gar 1

Numbers are the surveys that recorded each species.

Stocking

Lake Trout57,597 fish in 8 years, most recently 2025

All stocking records (9)
YearSpeciesFishStage
2025Lake Trout6,930Yearlings
2025Lake Trout4,000Fingerlings
2024Lake Trout7,182Yearlings
2023Lake Trout6,896Yearlings
2022Lake Trout7,164Yearlings
2021Lake Trout4,655Yearlings
2020Lake Trout7,056Yearlings
2019Lake Trout6,919Yearlings
2018Lake Trout6,795Yearlings

Eating your catch

The provincial guide to eating fish (2026) sets limits for 8 species from Muskrat Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm8Do not eatMercury
Largemouth Bass30-35 cm168Mercury
Northern Pike55-60 cm124Mercury
Smallmouth Bass35-40 cm124Mercury
Walleye40-45 cm124Mercury
Yellow Perch25-30 cm168Mercury
Rainbow Smelt15-20 cm124Mercury
White Sucker40-45 cm1612Precautionary

* 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 15. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 6 years between 2005 and 2018; the latest annual mean is 1.8 m.

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