Expanse Lake
50.3444° N, 91.7735° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Expanse Lake, Ontario. 50.3444° N, 91.7735° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/expanse-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.
- Fisheries Management Zones, 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.
Expanse Lake covers 8.66 km², making it larger than 95% of the 18,731 lakes in Ontario. It lies 23 km northwest of McDougall Mills.
Government surveys have recorded 9 fish species here, including walleye, yellow perch and cisco.
- Area
- 8.66 km²
- larger than 95% of the 18,731 lakes in Ontario
- Shoreline
- 35.9 km
- longer than 94% of the 18,731 lakes in Ontario
- Fish species
- 9
- more than 73% of the 2,454 surveyed lakes in Ontario
- Elevation
- 362 m
Today on the water
0.1 °C
Observed at Sioux Lookout, as of 5:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 7 a.m., wind from the south: the south shore is sheltered, waves build toward the north shore.
| Time | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | S 10 | S 15 | S 15 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | ||||
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.1 | ||||
| Temp. °C | 0 | 5 | 10 | 12 | 10 | 9 | 8 | 8 |
| Precip. % | 20 | 20 | 20 | 60 | 60 | 60 | 10 | 10 |
Today: A mix of sun and cloud. 30 percent chance of rain showers or flurries early this morning. 60 percent chance of rain this afternoon. High 12. UV index 2 or low.
Weather: Sioux Lookout (local forecast), as of 5:02 a.m. CDT
Sun and moon
- Civil dawn
- 6:47 a.m.
- Sunrise
- 7:20 a.m.
- Sunset
- 6:27 p.m.
- Civil dusk
- 7:00 p.m.
- Moonrise
- 6:12 a.m.
- Moonset
- 5:46 p.m.
- Moon
- Waning crescent, 1% lit
Fish
Sport fish by the share of the 25 government surveys (2009–2009) that recorded them.
Forage fish and other species (3)
Forage fish
- Spottail Shiner 4
Other
- White Sucker 13
- Shorthead Redhorse 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 2 species from Expanse Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 4 | Do not eat | Mercury |
* 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.