Sturgeon Lake
49.9273° N, 90.8969° W
Depth contours from the 1972 government survey. Not for navigation.
Download the depth map (SVG)Sturgeon Lake, Ontario. 49.9273° N, 90.8969° W
Maximum depth 79.2 m (1972 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/sturgeon-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.
- Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fishing access points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- 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.
Sturgeon Lake is 79.2 m deep at its deepest point, deeper than 98% of the 2,688 surveyed lakes in Ontario. It covers 243 km² and lies beside O'Briens Landing.
Government surveys have recorded 22 fish species here, including walleye, lake whitefish and burbot.
- Maximum depth
- 79.2 msurveyed 1972
- deeper than 98% of the 2,688 surveyed lakes in Ontario
- Area
- 243 km²
- larger than 99% of the 18,731 lakes in Ontario
- Shoreline
- 882 km
- longer than 99% of the 18,731 lakes in Ontario
- Fish species
- 22
- more than 98% of the 2,454 surveyed lakes in Ontario
- Elevation
- 410 m
Today on the water
0 °C
Observed at Savant Lake, as of 12:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.3 m.
| Time | 1 a.m. | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | S 10 | S 20 | S 20 | SE 10 | SE 20 | SE 20 |
| Gusts | 40 | |||||||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.3 | 0.3 | |||
| Temp. °C | 2 | -1 | 1 | 7 | 11 | 11 | 11 | 9 |
| Precip. % | 20 | 20 | 20 | 20 | 20 | 40 | 40 | 40 |
Tonight: Mainly cloudy. 30 percent chance of showers early this evening. Clearing near midnight. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low minus 1.
Weather: Savant Lake (local forecast), as of 12:02 a.m. CDT
Sun and moon
- Civil dawn
- 6:43 a.m.
- Sunrise
- 7:16 a.m.
- Sunset
- 6:24 p.m.
- Civil dusk
- 6:56 p.m.
- Moonrise
- 6:08 a.m.
- Moonset
- 5:43 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
10% of Sturgeon Lake is deeper than 30 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 1972 records a maximum depth of 79.2 m, drawn from 389 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.
Fish
Sport fish by the share of the 57 government surveys (2009–2009) that recorded them.
Forage fish and other species (14)
Forage fish
- Trout-Perch 14
- Spottail Shiner 11
- Lake Chub 6
- Blacknose Shiner 3
- Common Shiner 3
- Northern Pearl Dace 3
- Brook Stickleback 2
- Emerald Shiner 1
- Johnny Darter 1
- Logperch 1
- Mimic Shiner 1
Other
- White Sucker 31
- Shorthead Redhorse 3
- Longnose Sucker 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 6 species from Sturgeon Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 8 | Do not eat | Mercury |
| Lake Whitefish | 45-50 cm | 8 | 8 | Arsenic |
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 8 | 4 | Mercury |
| Burbot (Ling) | 50-55 cm | 4 | Do not eat | Mercury |
| White Sucker | 40-45 cm | 16 | 8 | Selenium |
* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide
Fishing regulations: Fisheries Management Zone 4. Check seasons and limits before you fish.
Getting on the water
7 listed boat launches. marks launches on the map.
Northeast end
- Boat launch
- Boat launch
- Boat launch
Southwest end
- Beidleman Bay
- Boat launch
- Boat launch
- Boat launch
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.