Map of Loughborough Lake with depth contours

Loughborough Lake

44.4474° N, 76.4115° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Loughborough Lake is 33.5 m deep at its deepest point, deeper than 83% of the 2,688 surveyed lakes in Ontario. It covers 19.4 km² and lies beside Battersea.

Government surveys have recorded 8 fish species here, including black crappie, northern pike and pumpkinseed.

Maximum depth
33.5 m
deeper than 83% of the 2,688 surveyed lakes in Ontario
Area
19.4 km²
larger than 97% of the 18,731 lakes in Ontario
Shoreline
89.1 km
longer than 98% of the 18,731 lakes in Ontario
Water clarity
6 mSecchi depth, 2025
clearer than 90% of the 1,251 monitored lakes in Ontario
Fish species
8
more than 65% of the 2,454 surveyed lakes in Ontario
Elevation
122 m

Today on the water

10.2 °C

Mainly ClearWind WSW 13 km/h

Observed at Kingston, 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 15NE 10NE 10
Gusts km/h5050
Waves (est.) m0.20.20.20.3
Temp. °C671114161384
Precip. %20404040202000

Tonight: Partly cloudy. 40 percent chance of showers this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low 6.

Weather: Kingston (local forecast), as of 3:02 a.m. EDT

Sun and moon

Civil dawn
6:44 a.m.
Sunrise
7:13 a.m.
Sunset
6:31 p.m.
Civil dusk
7:00 p.m.
Moonrise
6:05 a.m.
Moonset
5:50 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

13% of Loughborough Lake is deeper than 20 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 33.5 m, drawn from 44 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 (2008–2008) that recorded them.

  • Black Crappie1 of 1
  • Northern Pike1 of 1
  • Pumpkinseed1 of 1
  • Rock Bass1 of 1
  • Smallmouth Bass1 of 1
  • Yellow Perch1 of 1
  • Lake TroutStocked
Other species (1)
  • White Sucker 1

Numbers are the surveys that recorded each species.

Stocking

Lake Trout149,531 fish in 10 years, most recently 2025

All stocking records (10)
YearSpeciesFishStage
2025Lake Trout15,000Yearlings
2024Lake Trout13,406Yearlings
2023Lake Trout14,125Yearlings
2022Lake Trout15,000Yearlings
2021Lake Trout15,000Yearlings
2020Lake Trout15,000Yearlings
2019Lake Trout15,000Yearlings
2018Lake Trout17,000Yearlings
2017Lake Trout15,000Yearlings
2016Lake Trout15,000Yearlings

Eating your catch

The provincial guide to eating fish (2026) sets limits for 5 species from Loughborough Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm8Do not eatMercury
Largemouth Bass30-35 cm84Mercury
Northern Pike55-60 cm124Mercury
Smallmouth Bass35-40 cm8Do not eatMercury
Splake45-50 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 18. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 28 years between 1996 and 2025; the latest annual mean is 6 m.

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

Getting on the water

3 listed boat launches. marks launches on the map.

Southeast shore

Southwest end

Northwest shore