Big Trout Lake
44.9281° N, 78.9277° W
Depth contours from the 1980 government survey. Not for navigation.
Download the depth map (SVG)Big Trout Lake, Ontario. 44.9281° N, 78.9277° W
Maximum depth 28 m (1980 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/big-trout-lake-near-bracebridge/, 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).
Big Trout Lake is 28 m deep at its deepest point, deeper than 77% of the 2,688 surveyed lakes in Ontario. It covers 2.21 km² and lies 10 km southeast of Clear Lake.
- Maximum depth
- 28 msurveyed 1980
- deeper than 77% of the 2,688 surveyed lakes in Ontario
- Area
- 2.21 km²
- larger than 82% of the 18,731 lakes in Ontario
- Shoreline
- 22.1 km
- longer than 89% of the 18,731 lakes in Ontario
- Elevation
- 292 m
Today on the water
7.4 °C
Observed at Bracebridge, as of 4:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 4 | 6 | 9 | 13 | 14 | 9 | 5 | 2 |
| Precip. % | 40 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.
Weather: Bracebridge (local forecast), as of 4:01 a.m. EDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:23 a.m.
- Sunset
- 6:41 p.m.
- Civil dusk
- 7:10 p.m.
- Moonrise
- 6:15 a.m.
- Moonset
- 5:59 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Dorset, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Depth
33% of Big Trout Lake 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 1980 records a maximum depth of 28 m, drawn from 81 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.