Lake One
46.6636° N, 84.2164° W
Depth contours from the 1971 government survey. Not for navigation.
Download the depth map (SVG)Lake One, Ontario. 46.6636° N, 84.2164° W
Maximum depth 16 m (1971 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/lake-one/, 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).
- Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
Lake One is 16 m deep at its deepest point, deeper than 50% of the 2,688 surveyed lakes in Ontario. It covers 0.35 km² and lies 3.3 km east of Island Lake.
- Maximum depth
- 16 msurveyed 1971
- deeper than 50% of the 2,688 surveyed lakes in Ontario
- Area
- 0.35 km²
- smaller than 61% of the 18,731 lakes in Ontario
- Shoreline
- 4 km
- shorter than 61% of the 18,731 lakes in Ontario
- Elevation
- 377 m
Today on the water
9.6 °C
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.
| Time | 9 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/h | var. 5 | W 20 | W 20 | var. 5 | SE 10 | SE 10 | SE 10 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Temp. °C | 10 | 12 | 13 | 12 | 9 | 6 | 4 | 8 |
| Precip. % | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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
- 7:00 p.m.
- Civil dusk
- 7:31 p.m.
- Moonrise
- 6:38 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
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 1971 records a maximum depth of 16 m, drawn from 20 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.