Thornbury Lake
51.0835° N, 87.2787° W
Depth contours from the 1979 government survey. Not for navigation.
Download the depth map (SVG)Thornbury Lake, Ontario. 51.0835° N, 87.2787° W
Maximum depth 4 m (1979 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/thornbury-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.
Thornbury Lake is 4 m deep at its deepest point, shallower than 92% of the 2,688 surveyed lakes in Ontario. It covers 3.21 km² and lies 55 km northwest of Skibi Lake.
- Maximum depth
- 4 msurveyed 1979
- shallower than 92% of the 2,688 surveyed lakes in Ontario
- Area
- 3.21 km²
- larger than 87% of the 18,731 lakes in Ontario
- Shoreline
- 16.2 km
- longer than 84% of the 18,731 lakes in Ontario
- Elevation
- 279 m
Sun and moon today
- Civil dawn
- 7:29 a.m.
- Sunrise
- 8:02 a.m.
- Sunset
- 7:08 p.m.
- Civil dusk
- 7:41 p.m.
- Moonrise
- 6:54 a.m.
- Moonset
- 6:27 p.m.
- Moon
- Waning crescent, 1% lit
Depth
The government depth survey from 1979 records a maximum depth of 4 m, drawn from 9 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 Depths are from government surveys and may be outdated.