Map of Finn Lake with depth contours

Finn Lake

46.6481° N, 84.2694° W

Depth contours from the 2022 government survey. Not for navigation.

Download the depth map (SVG)

Finn Lake is 9 m deep at its deepest point, shallower than 76% of the 2,688 surveyed lakes in Ontario. It covers 0.28 km² and lies 3 km south of Island Lake.

Government surveys have recorded 1 fish species here: brook trout.

Maximum depth
9 msurveyed 2022
shallower than 76% of the 2,688 surveyed lakes in Ontario
Area
0.28 km²
smaller than 68% of the 18,731 lakes in Ontario
Shoreline
4.7 km
shorter than 53% of the 18,731 lakes in Ontario
Fish species
1
fewer than 100% of the 2,454 surveyed lakes in Ontario
Elevation
339 m

Today on the water

9.6 °C

Partly CloudyWind NW 28 km/h

Observed at Sault Ste. Marie, as of 8:00 a.m. EDT

calm Estimated waves, next 12 hours: up to 0.1 m. Wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.

Hourly forecast, next 24 hours
Time9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.6 a.m.
Wind km/hvar. 5W 20W 20var. 5SE 10SE 10SE 10SE 20
Gusts km/h404040
Waves (est.) m0.10.10.10.1
Temp. °C101213129648
Precip. %100000000

Today: A mix of sun and cloud with 30 percent chance of showers early this morning. Becoming sunny this afternoon. Wind becoming west 20 km/h gusting to 40 late this morning. High 13. UV index 3 or moderate.

Weather: Sault Ste. Marie (local forecast), as of 8:03 a.m. EDT

Sun and moon

Civil dawn
7:16 a.m.
Sunrise
7:46 a.m.
Sunset
7:01 p.m.
Civil dusk
7:31 p.m.
Moonrise
6:39 a.m.
Moonset
6:19 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Sault Ste. Marie, as of 7:00 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

50% of Finn Lake is shallower than 3 m, and 23% is deeper than 5 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 from 2022 records a maximum depth of 9 m, drawn from 26 depth contours.

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 Depths are from government surveys and may be outdated.

Fish

  • Brook TroutStocked

Stocking

Brook Trout22,043 fish in 11 years, most recently 2026

All stocking records (11)
YearSpeciesFishStage
2026Brook Trout1,500Yearlings
2025Brook Trout3,043Yearlings
2024Brook Trout1,500Yearlings
2023Brook Trout2,000Yearlings
2022Brook Trout2,000Yearlings
2021Brook Trout2,000Yearlings
2020Brook Trout2,000Yearlings
2019Brook Trout2,000Yearlings
2018Brook Trout2,000Yearlings
2017Brook Trout2,000Yearlings
2016Brook Trout2,000Yearlings

Fishing regulations: Fisheries Management Zone 10. Check seasons and limits before you fish.