Jean Lake
48.5344° N, 91.7363° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Jean Lake, Ontario. 48.5344° N, 91.7363° W
Maximum depth 78 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/jean-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.
- 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.
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
Jean Lake is 78 m deep at its deepest point, deeper than 98% of the 2,688 surveyed lakes in Ontario. It covers 13.6 km² and lies 29 km northeast of Lac la Croix.
Government surveys have recorded 11 fish species here, including walleye, lake trout and lake whitefish.
- Maximum depth
- 78 m
- deeper than 98% of the 2,688 surveyed lakes in Ontario
- Area
- 13.6 km²
- larger than 96% of the 18,731 lakes in Ontario
- Shoreline
- 65.1 km
- longer than 97% of the 18,731 lakes in Ontario
- Fish species
- 11
- more than 77% of the 2,454 surveyed lakes in Ontario
- Elevation
- 379 m
Today on the water
0 °C
Observed at Atikokan, as of 7:00 a.m. EST
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 7 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | SE 10 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | ||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | |||
| Temp. °C | 2 | 9 | 14 | 15 | 11 | 9 | 8 | 9 |
| Precip. % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: Increasing cloudiness this morning. Wind up to 15 km/h. High 16. Wind chill minus 4 this morning. UV index 3 or moderate.
Weather: Atikokan (local forecast), as of 7:02 a.m. EST
Sun and moon
- Civil dawn
- 6:46 a.m.
- Sunrise
- 7:18 a.m.
- Sunset
- 6:29 p.m.
- Civil dusk
- 7:00 p.m.
- Moonrise
- 6:11 a.m.
- Moonset
- 5:48 p.m.
- Moon
- Waning crescent, 1% lit
Depth
19% of Jean 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 records a maximum depth of 78 m, drawn from 172 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 22 government surveys (2010–2010) that recorded them.
Forage fish and other species (3)
Forage fish
- Emerald Shiner 5
- Spottail Shiner 2
Other
- White Sucker 4
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 7 species from Jean Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 8 | 4 | Mercury |
| Lake Whitefish | 45-50 cm | 12 | 12 | Arsenic |
| Northern Pike | 55-60 cm | 8 | 4 | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Walleye | 40-45 cm | 8 | 4 | Mercury |
| Burbot (Ling) | 50-55 cm | 4 | Do not eat | Mercury |
| White Sucker | 50-55 cm | 16 | 12 | 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 5. Check seasons and limits before you fish.