Surf Lake
47.7164° N, 84.88° W
Depth contours from the 1976 government survey. Not for navigation.
Download the depth map (SVG)Surf Lake, Ontario. 47.7164° N, 84.88° W
Maximum depth 21.3 m (1976 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/surf-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).
Surf Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 0.42 km² and lies 17 km north of Gargantua.
- Maximum depth
- 21.3 msurveyed 1976
- deeper than 62% of the 2,688 surveyed lakes in Ontario
- Area
- 0.42 km²
- smaller than 55% of the 18,731 lakes in Ontario
- Shoreline
- 4.8 km
- shorter than 53% of the 18,731 lakes in Ontario
- Elevation
- 354 m
Today on the water
2.2 °C
Observed at Lake Superior (Provincial Park), as of 8:00 a.m. EDT
calm Estimated waves, next 12 hours: up to 0.1 m.
| 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 | 0.1 | |||
| Temp. °C | 6 | 8 | 11 | 10 | 5 | 4 | 4 | 7 |
| Precip. % | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud. 30 percent chance of showers early this morning. Clearing this afternoon. Wind becoming west 20 km/h gusting to 40 late this morning. High 12. UV index 3 or moderate.
Weather: Lake Superior (Provincial Park) (local forecast), as of 8:03 a.m. EDT
Sun and moon
- Civil dawn
- 7:19 a.m.
- Sunrise
- 7:50 a.m.
- Sunset
- 7:02 p.m.
- Civil dusk
- 7:33 p.m.
- Moonrise
- 6:42 a.m.
- Moonset
- 6:21 p.m.
- Moon
- Waning crescent, 1% lit
Depth
37% of Surf 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 1976 records a maximum depth of 21.3 m, drawn from 10 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.