Manion Lake
48.9094° N, 92.3183° W
Depth contours from the 1979 government survey. Not for navigation.
Download the depth map (SVG)Manion Lake, Ontario. 48.9094° N, 92.3183° W
Maximum depth 12 m (1979 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/manion-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.
Manion Lake is 12 m deep at its deepest point, shallower than 68% of the 2,688 surveyed lakes in Ontario. It covers 11.5 km² and lies 22 km northwest of Flanders.
Government surveys have recorded 9 fish species here, including walleye, yellow perch and northern pike.
- Maximum depth
- 12 msurveyed 1979
- shallower than 68% of the 2,688 surveyed lakes in Ontario
- Area
- 11.5 km²
- larger than 96% of the 18,731 lakes in Ontario
- Shoreline
- 33 km
- longer than 93% of the 18,731 lakes in Ontario
- Fish species
- 9
- more than 69% of the 2,454 surveyed lakes in Ontario
- Elevation
- 374 m
Today on the water
-1 °C
Observed at Mine Centre, as of 5:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 4 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest 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 | SE 10 | var. 5 | SE 15 | E 10 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | ||||
| Waves (est.) m | 0.2 | 0.1 | 0.2 | 0.2 | ||||
| Temp. °C | 3 | 6 | 12 | 16 | 15 | 13 | 10 | 12 |
| Precip. % | 20 | 20 | 20 | 20 | 20 | 20 | 0 | 0 |
Today: A mix of sun and cloud. Wind becoming southeast 20 km/h gusting to 40 late this afternoon. High 17. UV index 3 or moderate.
Weather: Mine Centre (local forecast), as of 5:03 a.m. CDT
Sun and moon
- Civil dawn
- 6:49 a.m.
- Sunrise
- 7:20 a.m.
- Sunset
- 6:31 p.m.
- Civil dusk
- 7:02 p.m.
- Moonrise
- 6:14 a.m.
- Moonset
- 5:50 p.m.
- Moon
- Waning crescent, 1% lit
Depth
21% of Manion Lake is shallower than 3 m, and 65% is deeper than 5 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 1979 records a maximum depth of 12 m, drawn from 25 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 25 government surveys (2010–2010) that recorded them.
Forage fish and other species (4)
Forage fish
- Spottail Shiner 7
- Trout-Perch 6
Other
- White Sucker 16
- Shorthead Redhorse 3
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 5 species from Manion Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | Do not eat | Mercury |
| Walleye | 40-45 cm | 4 | Do not eat | Mercury |
| Yellow Perch | 20-25 cm | 12 | 4 | Mercury |
| White Sucker | 40-45 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.
Getting on the water
2 listed boat launches. marks launches on the map.
West shore
- Boat launch
Northwest shore
- Boat launch