Big Trout Lake
53.7835° N, 90.0072° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Big Trout Lake, Ontario. 53.7835° N, 90.0072° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/big-trout-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.
- Real-time hydrometric data, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- National Water Data Archive (HYDAT) daily means, 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.
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
Big Trout Lake covers 644 km², making it larger than 99% of the 18,731 lakes in Ontario. It lies beside Kitchenuhmaykoosib.
Government surveys have recorded 18 fish species here, including lake whitefish, walleye and northern pike.
- Area
- 644 km²
- larger than 99% of the 18,731 lakes in Ontario
- Shoreline
- 656 km
- longer than 99% of the 18,731 lakes in Ontario
- Fish species
- 18
- more than 95% of the 2,454 surveyed lakes in Ontario
- Elevation
- 206 m
Sun and moon today
- Civil dawn
- 6:41 a.m.
- Sunrise
- 7:16 a.m.
- Sunset
- 6:16 p.m.
- Civil dusk
- 6:51 p.m.
- Moonrise
- 6:07 a.m.
- Moonset
- 5:35 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 76 government surveys (2011–2011) that recorded them.
Forage fish and other species (11)
Forage fish
- Trout-Perch 12
- Spottail Shiner 9
- Lake Chub 7
- Logperch 5
- Ninespine Stickleback 4
- Johnny Darter 1
- Slimy Sculpin 1
- Spoonhead Sculpin 1
Other
- White Sucker 54
- Longnose Sucker 35
- Shorthead Redhorse 3
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 7 species from Big Trout Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 12 | 8 | PCB |
| Lake Whitefish | 45-50 cm | 16 | 16 | Precautionary |
| Northern Pike | 55-60 cm | 16 | 8 | Mercury |
| Walleye | 40-45 cm | 16 | 8 | Mercury |
| Burbot (Ling) | 50-55 cm | 16 | 8 | Mercury |
| Longnose Sucker | 40-45 cm | 16 | 16 | Precautionary |
| White Sucker | 40-45 cm | 16 | 16 | Precautionary |
* 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 2. Check seasons and limits before you fish.
Photos
Follow this lake
Every Friday by email: the water level at the nearest gauge.