Map of Big Mink Lake with depth contours

Big Mink Lake

45.2553° N, 78.0801° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Big Mink Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 1.9 km² and lies 6.6 km south of Lake St. Peter.

Government surveys have recorded 2 fish species here: lake trout and white sucker.

Maximum depth
21.3 m
deeper than 62% of the 2,688 surveyed lakes in Ontario
Area
1.9 km²
larger than 80% of the 18,731 lakes in Ontario
Shoreline
21.5 km
longer than 89% of the 18,731 lakes in Ontario
Water clarity
2.9 mSecchi depth, 2022
less clear than 67% of the 1,251 monitored lakes in Ontario
Fish species
2
fewer than 60% of the 2,454 surveyed lakes in Ontario
Elevation
406 m

Today on the water

6.7 °C

Wind calm

Observed at Haliburton, as of 9:00 a.m. EDT

choppy Estimated waves, next 12 hours: up to 0.2 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
Time10 a.m.1 p.m.4 p.m.7 p.m.10 p.m.1 a.m.4 a.m.7 a.m.
Wind km/hW 15NW 30NW 30NW 15var. 5var. 5var. 5var. 5
Gusts km/h5050
Waves (est.) m0.10.20.20.1
Temp. °C811131051-11
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 13. UV index 4 or moderate.

Weather: Haliburton (local forecast), as of 9:02 a.m. EDT

Sun and moon

Civil dawn
6:51 a.m.
Sunrise
7:20 a.m.
Sunset
6:37 p.m.
Civil dusk
7:07 p.m.
Moonrise
6:12 a.m.
Moonset
5:56 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.

Depth

62% of Big Mink Lake is shallower than 3 m, and 6% is deeper than 10 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 21.3 m, drawn from 20 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

Sport fish by the share of the 6 government surveys (1899–1899) that recorded them.

  • Lake TroutStocked5 of 6
Other species (1)
  • White Sucker 6

Numbers are the surveys that recorded each species.

Stocking

Lake Trout1,952 fish in 5 years, most recently 2024

All stocking records (5)
YearSpeciesFishStage
2024Lake Trout352Yearlings
2022Lake Trout400Yearlings
2020Lake Trout400Yearlings
2018Lake Trout400Yearlings
2016Lake Trout400Yearlings

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Big Mink Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm164Mercury, PCB
Smallmouth Bass35-40 cm4Do 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 15. Check seasons and limits before you fish.

Water

Clarity was measured with a Secchi disk in 3 years between 2002 and 2022; the latest annual mean is 2.9 m.

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

Getting on the water

1 listed boat launch. marks launches on the map.