Montreuil Lake
49.5527° N, 80.7903° W
Depth contours from the 1970 government survey. Not for navigation.
Download the depth map (SVG)Montreuil Lake, Ontario. 49.5527° N, 80.7903° W
Maximum depth 21.3 m (1970 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/montreuil-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.
- 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.
Montreuil Lake is 21.3 m deep at its deepest point, deeper than 62% of the 2,688 surveyed lakes in Ontario. It covers 4.99 km² and lies 30 km north of Gardiner.
Government surveys have recorded 12 fish species here, including cisco, northern pike and sauger.
- Maximum depth
- 21.3 msurveyed 1970
- deeper than 62% of the 2,688 surveyed lakes in Ontario
- Area
- 4.99 km²
- larger than 91% of the 18,731 lakes in Ontario
- Shoreline
- 26.1 km
- longer than 91% of the 18,731 lakes in Ontario
- Fish species
- 12
- more than 81% of the 2,454 surveyed lakes in Ontario
- Elevation
- 252 m
Sun and moon today
- Civil dawn
- 7:03 a.m.
- Sunrise
- 7:35 a.m.
- Sunset
- 6:44 p.m.
- Civil dusk
- 7:16 p.m.
- Moonrise
- 6:26 a.m.
- Moonset
- 6:03 p.m.
- Moon
- Waning crescent, 1% lit
Depth
3% of Montreuil 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 1970 records a maximum depth of 21.3 m, drawn from 36 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 20 government surveys (2010–2010) that recorded them.
Forage fish and other species (5)
Forage fish
- Spottail Shiner 6
- Trout-Perch 2
- Logperch 1
Other
- White Sucker 7
- Longnose Sucker 2
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 3 species from Montreuil Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Sauger | 30-35 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 8 | 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 8. Check seasons and limits before you fish.