Tricorn Lake
49.5125° N, 86.5253° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Tricorn Lake, Ontario. 49.5125° N, 86.5253° W
Maximum depth 30.5 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/tricorn-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.
- Fish stocking for recreational purposes, 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).
Tricorn Lake is 30.5 m deep at its deepest point, deeper than 79% of the 2,688 surveyed lakes in Ontario. It covers 0.71 km² and lies 20 km south of Theresa.
Government surveys have recorded 2 fish species here: rainbow trout and splake.
- Maximum depth
- 30.5 m
- deeper than 79% of the 2,688 surveyed lakes in Ontario
- Area
- 0.71 km²
- larger than 59% of the 18,731 lakes in Ontario
- Shoreline
- 7.1 km
- longer than 63% of the 18,731 lakes in Ontario
- Fish species
- 2
- fewer than 60% of the 2,454 surveyed lakes in Ontario
- Elevation
- 353 m
Today on the water
4 °C
Observed at Greenstone (Geraldton), as of 10:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. | 8 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 20 | W 20 | SW 10 | SE 10 | SE 10 | SE 10 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | ||||
| Waves (est.) m | 0.2 | 0.2 | 0.1 | 0.1 | ||||
| Temp. °C | 4 | 10 | 10 | 5 | 2 | 4 | 6 | 8 |
| Precip. % | 0 | 0 | 0 | 0 | 0 | 30 | 30 | 20 |
Today: A mix of sun and cloud. 30 percent chance of showers early this morning. Wind becoming west 20 km/h gusting to 40 late this morning. High 10. UV index 2 or low.
Weather: Greenstone (Geraldton) (local forecast), as of 10:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:26 a.m.
- Sunrise
- 7:58 a.m.
- Sunset
- 7:07 p.m.
- Civil dusk
- 7:39 p.m.
- Moonrise
- 6:50 a.m.
- Moonset
- 6:26 p.m.
- Moon
- Waning crescent, 1% lit
Depth
53% of Tricorn Lake is shallower than 3 m, and 21% 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 records a maximum depth of 30.5 m, drawn from 13 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
- Rainbow TroutStocked
- SplakeStocked
Stocking
Splake99,480 fish in 9 years, most recently 2025
Rainbow Trout86,992 fish in 10 years, most recently 2025
All stocking records (29)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2025 | Rainbow Trout | 2,500 | Yearlings |
| 2025 | Rainbow Trout | 4,700 | Fingerlings |
| 2025 | Splake | 2,500 | Yearlings |
| 2024 | Rainbow Trout | 2,000 | Yearlings |
| 2024 | Rainbow Trout | 6,000 | Fingerlings |
| 2024 | Splake | 2,500 | Yearlings |
| 2023 | Rainbow Trout | 2,000 | Yearlings |
| 2023 | Rainbow Trout | 3,000 | Fingerlings |
| 2023 | Splake | 2,500 | Yearlings |
| 2022 | Rainbow Trout | 2,000 | Yearlings |
| 2022 | Rainbow Trout | 6,500 | Fingerlings |
| 2021 | Rainbow Trout | 3,100 | Yearlings |
| 2021 | Rainbow Trout | 7,500 | Fingerlings |
| 2021 | Splake | 20,000 | Yearlings |
| 2020 | Rainbow Trout | 2,500 | Yearlings |
| 2020 | Rainbow Trout | 6,700 | Fingerlings |
| 2020 | Splake | 15,000 | Yearlings |
| 2019 | Rainbow Trout | 7,492 | Fingerlings |
| 2019 | Rainbow Trout | 2,500 | Yearlings |
| 2019 | Splake | 19,990 | Yearlings |
| 2018 | Rainbow Trout | 2,500 | Yearlings |
| 2018 | Rainbow Trout | 7,500 | Fingerlings |
| 2018 | Splake | 19,996 | Yearlings |
| 2017 | Rainbow Trout | 7,500 | Fingerlings |
| 2017 | Rainbow Trout | 2,000 | Yearlings |
| 2017 | Splake | 7,994 | Yearlings |
| 2016 | Rainbow Trout | 2,000 | Yearlings |
| 2016 | Rainbow Trout | 7,000 | Fingerlings |
| 2016 | Splake | 9,000 | Yearlings |
Fishing regulations: Fisheries Management Zone 7. Check seasons and limits before you fish.