Least Lake
47.5976° N, 83.2218° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Least Lake, Ontario. 47.5976° N, 83.2218° W
Maximum depth 18.3 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/least-lake/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Bathymetry lines and survey index, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
Least Lake is 18.3 m deep at its deepest point, deeper than 54% of the 2,688 surveyed lakes in Ontario. It covers 0.43 km² and lies 14 km south of Nemegos.
- Maximum depth
- 18.3 m
- deeper than 54% of the 2,688 surveyed lakes in Ontario
- Area
- 0.43 km²
- smaller than 54% of the 18,731 lakes in Ontario
- Shoreline
- 4.7 km
- shorter than 54% of the 18,731 lakes in Ontario
- Elevation
- 458 m
Today on the water
5.5 °C
Observed at Chapleau, as of 4:00 a.m. EDT
calm Estimated waves, next 12 hours: up to 0.1 m. Around 5 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 5 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/h | W 10 | NW 20 | NW 20 | W 20 | W 10 | var. 5 | SE 10 | SE 10 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Temp. °C | 3 | 2 | 6 | 10 | 11 | 6 | 3 | 0 |
| Precip. % | 30 | 30 | 20 | 20 | 0 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50 becoming light late this evening. Low plus 2.
Weather: Chapleau (local forecast), as of 4:00 a.m. EDT
Sun and moon
- Civil dawn
- 7:12 a.m.
- Sunrise
- 7:43 a.m.
- Sunset
- 6:56 p.m.
- Civil dusk
- 7:26 p.m.
- Moonrise
- 6:35 a.m.
- Moonset
- 6:14 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
35% of Least Lake is shallower than 3 m, and 14% 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 18.3 m, drawn from 12 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
Not for navigation. Depths are from government surveys and may be outdated.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.