Map of Gananoque Lake with depth contours

Gananoque Lake

44.4452° N, 76.1532° W

Depth contours from the 1975 government survey. Not for navigation.

Download the depth map (SVG)

Gananoque Lake is 16.8 m deep at its deepest point, deeper than 52% of the 2,688 surveyed lakes in Ontario. It covers 3.4 km² and lies 3 km east of Berryton.

Government surveys have recorded 3 fish species here: bluegill, pumpkinseed and yellow perch.

Maximum depth
16.8 msurveyed 1975
deeper than 52% of the 2,688 surveyed lakes in Ontario
Area
3.4 km²
larger than 88% of the 18,731 lakes in Ontario
Shoreline
15 km
longer than 83% of the 18,731 lakes in Ontario
Water clarity
3 mSecchi depth, 2011
less clear than 65% of the 1,251 monitored lakes in Ontario
Fish species
3
fewer than 55% of the 2,454 surveyed lakes in Ontario
Elevation
82 m

Today on the water

10.5 °C

Wind WSW 3 km/h

Observed at Gananoque, as of 3:00 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
Time4 a.m.7 a.m.10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.
Wind km/hW 15W 15W 15NW 30NW 30NW 15var. 5var. 5
Gusts km/h5050
Waves (est.) m0.20.20.20.3
Temp. °C561013151274
Precip. %204040404020200

Tonight: Partly cloudy. 60 percent chance of showers this evening. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 5.

Weather: Gananoque (local forecast), as of 3:04 a.m. EDT

Sun and moon

Civil dawn
6:43 a.m.
Sunrise
7:12 a.m.
Sunset
6:30 p.m.
Civil dusk
6:59 p.m.
Moonrise
6:04 a.m.
Moonset
5:49 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Kingston, as of 2:00 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 1975 records a maximum depth of 16.8 m, drawn from 18 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 1 government surveys (2001–2001) that recorded them.

  • Bluegill1 of 1
  • Pumpkinseed1 of 1
  • Yellow Perch1 of 1

Eating your catch

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

SpeciesLengthGeneral populationSensitive population*Contaminant
Black Crappie20-25 cm164Mercury
Bluegill15-20 cm168Mercury
Largemouth Bass30-35 cm84Mercury
Northern Pike55-60 cm84Mercury
Pumpkinseed15-20 cm124Mercury
Smallmouth Bass35-40 cm8Do not eatMercury
Yellow Perch20-25 cm168Mercury
Brown Bullhead20-25 cm1616Precautionary

* 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 18. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 16 years between 1996 and 2011; the latest annual mean is 3 m.

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

Getting on the water

2 listed boat launches. marks launches on the map.

Northeast shore

Southeast shore