Botsford Lake
50.1386° N, 91.6591° W
Depth contours from the 1970 government survey. Not for navigation.
Download the depth map (SVG)Botsford Lake, Ontario. 50.1386° N, 91.6591° W
Maximum depth 24.4 m (1970 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/botsford-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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Botsford Lake is 24.4 m deep at its deepest point, deeper than 70% of the 2,688 surveyed lakes in Ontario. It covers 14.7 km² and lies 2.2 km southwest of McDougall Mills.
- Maximum depth
- 24.4 msurveyed 1970
- deeper than 70% of the 2,688 surveyed lakes in Ontario
- Area
- 14.7 km²
- larger than 97% of the 18,731 lakes in Ontario
- Shoreline
- 63.5 km
- longer than 97% of the 18,731 lakes in Ontario
- Elevation
- 355 m
Today on the water
1.3 °C
Observed at Sioux Lookout, as of 7:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 8 a.m., wind from the south: the south shore is sheltered, waves build toward the north shore.
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | S 15 | S 15 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | 40 | |||
| Waves (est.) m | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 2 | 8 | 11 | 11 | 9 | 8 | 8 | 9 |
| Precip. % | 20 | 20 | 60 | 60 | 60 | 10 | 10 | 10 |
Today: A mix of sun and cloud. 30 percent chance of rain showers or flurries early this morning. 60 percent chance of rain this afternoon. High 12. UV index 2 or low.
Weather: Sioux Lookout (local forecast), as of 7:03 a.m. CDT
Sun and moon
- Civil dawn
- 6:46 a.m.
- Sunrise
- 7:19 a.m.
- Sunset
- 6:27 p.m.
- Civil dusk
- 6:59 p.m.
- Moonrise
- 6:12 a.m.
- Moonset
- 5:46 p.m.
- Moon
- Waning crescent, 1% lit
Depth
28% of Botsford Lake is shallower than 3 m, and 26% 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 from 1970 records a maximum depth of 24.4 m, drawn from 63 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.