Loonhaunt Lake
49.002° N, 93.5036° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Loonhaunt Lake, Ontario. 49.002° N, 93.5036° W
Maximum depth 46.6 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/loonhaunt-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.
Loonhaunt Lake is 46.6 m deep at its deepest point, deeper than 92% of the 2,688 surveyed lakes in Ontario. It covers 21.3 km² and lies 13 km north of Northwest Bay.
Government surveys have recorded 17 fish species here, including walleye, lake whitefish and northern pike.
- Maximum depth
- 46.6 m
- deeper than 92% of the 2,688 surveyed lakes in Ontario
- Area
- 21.3 km²
- larger than 98% of the 18,731 lakes in Ontario
- Shoreline
- 92.8 km
- longer than 98% of the 18,731 lakes in Ontario
- Fish species
- 17
- more than 93% of the 2,454 surveyed lakes in Ontario
- Elevation
- 351 m
Today on the water
0.3 °C
Observed at Fort Frances, as of 8:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 10 a.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.
| Time | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. | 6 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | SE 15 | E 10 | SE 20 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | 40 | |||
| Waves (est.) m | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 6 | 12 | 17 | 15 | 13 | 12 | 13 | 15 |
| Precip. % | 20 | 20 | 20 | 20 | 20 | 0 | 0 | 0 |
Today: A mix of sun and cloud. Wind becoming southeast 20 km/h gusting to 40 late this afternoon. High 18. UV index 2 or low.
Weather: Fort Frances (local forecast), as of 8:04 a.m. CDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:25 a.m.
- Sunset
- 6:35 p.m.
- Civil dusk
- 7:07 p.m.
- Moonrise
- 6:19 a.m.
- Moonset
- 5:54 p.m.
- Moon
- Waning crescent, 1% lit
Depth
21% of Loonhaunt Lake is deeper than 20 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 46.6 m, drawn from 69 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 38 government surveys (2010–2010) that recorded them.
Forage fish and other species (7)
Forage fish
- Logperch 3
- Trout-Perch 3
- Bluntnose Minnow 1
- Emerald Shiner 1
- Spoonhead Sculpin 1
Other
- White Sucker 14
- Northern Sunfish 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 7 species from Loonhaunt Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 12 | 4 | Mercury |
| Lake Whitefish | 45-50 cm | 16 | 16 | Precautionary |
| Northern Pike | 55-60 cm | 8 | Do not eat | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Walleye | 40-45 cm | 12 | 4 | Mercury |
| Burbot (Ling) | 50-55 cm | 8 | 4 | Mercury |
| 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 5. Check seasons and limits before you fish.