Gamsby Lake
49.5178° N, 87.1817° W
Depth contours from the 1973 government survey. Not for navigation.
Download the depth map (SVG)Gamsby Lake, Ontario. 49.5178° N, 87.1817° W
Maximum depth 7.6 m (1973 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/gamsby-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.
Gamsby Lake is 7.6 m deep at its deepest point, shallower than 80% of the 2,688 surveyed lakes in Ontario. It covers 6.14 km² and lies 17 km south of Bankfield.
- Maximum depth
- 7.6 msurveyed 1973
- shallower than 80% of the 2,688 surveyed lakes in Ontario
- Area
- 6.14 km²
- larger than 93% of the 18,731 lakes in Ontario
- Shoreline
- 38.6 km
- longer than 94% of the 18,731 lakes in Ontario
- Elevation
- 373 m
Today on the water
3.5 °C
Observed at Greenstone (Geraldton), as of 2:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m.
| Time | 3 a.m. | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 10 | W 10 | W 10 | W 20 | W 10 | S 10 | S 10 | SE 10 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | ||||
| Temp. °C | 2 | 1 | 2 | 6 | 10 | 10 | 8 | 6 |
| Precip. % | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 20 |
Tonight: Cloudy with 60 percent chance of showers. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low zero.
Weather: Greenstone (Geraldton) (local forecast), as of 2:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:28 a.m.
- Sunrise
- 8:00 a.m.
- Sunset
- 7:10 p.m.
- Civil dusk
- 7:42 p.m.
- Moonrise
- 6:52 a.m.
- Moonset
- 6:28 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
The government depth survey from 1973 records a maximum depth of 7.6 m, drawn from 16 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.