Map of Gull Lake with depth contours

Gull Lake

44.9166° N, 79.3541° W

Depth contours from the 2013 government survey. Not for navigation.

Download the depth map (SVG)

Gull Lake is 22 m deep at its deepest point, deeper than 66% of the 2,688 surveyed lakes in Ontario. It covers 1.92 km² and lies 1.1 km northeast of Muskoka.

Government surveys have recorded 4 fish species here, including rainbow trout.

Maximum depth
22 msurveyed 2013
deeper than 66% of the 2,688 surveyed lakes in Ontario
Area
1.92 km²
larger than 80% of the 18,731 lakes in Ontario
Shoreline
20.1 km
longer than 88% of the 18,731 lakes in Ontario
Water clarity
2.9 mSecchi depth, 2021
less clear than 65% of the 1,251 monitored lakes in Ontario
Fish species
4
fewer than 51% of the 2,454 surveyed lakes in Ontario
Elevation
249 m

Today on the water

7.4 °C

ClearWind NNW 13 km/h

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

choppy Estimated waves, next 12 hours: up to 0.3 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
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 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.10.10.30.3
Temp. °C4691314952
Precip. %4040402020000

Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.

Weather: Gravenhurst (local forecast), as of 4:01 a.m. EDT

Sun and moon

Civil dawn
6:56 a.m.
Sunrise
7:25 a.m.
Sunset
6:43 p.m.
Civil dusk
7:12 p.m.
Moonrise
6:17 a.m.
Moonset
6:01 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Dorset, 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

The government depth survey from 2013 records a maximum depth of 22 m, drawn from 25 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

  • Rainbow TroutStocked
Forage fish and other species (3)
  • Brook Stickleback 1
  • Central Mudminnow 1
  • Finescale Dace 1

Numbers are the surveys that recorded each species.

Stocking

Rainbow Trout23,078 fish in 10 years, most recently 2025

All stocking records (13)
YearSpeciesFishStage
2025Rainbow Trout3,000Yearlings
2024Rainbow Trout3,000Yearlings
2023Rainbow Trout480Yearlings
2023Rainbow Trout1,200Yearlings
2022Rainbow Trout1,000Yearlings
2021Rainbow Trout2,800Yearlings
2020Rainbow Trout2,000Yearlings
2019Rainbow Trout800Yearlings
2019Rainbow Trout2,000Yearlings
2018Rainbow Trout2,000Yearlings
2017Rainbow Trout800Yearlings
2017Rainbow Trout1,998Yearlings
2016Rainbow Trout2,000Yearlings

Fishing regulations: Fisheries Management Zone 15. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 24 years between 1992 and 2021; the latest annual mean is 2.9 m.

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

Getting on the water

3 listed access points, 2 of them boat launches; 3 with parking listed. marks launches on the map.

South shore

West end