Heart Lake
43.7403° N, 79.7953° W
Depth contours from the 1980 government survey. Not for navigation.
Download the depth map (SVG)Heart Lake, Ontario. 43.7403° N, 79.7953° W
Maximum depth 10 m (1980 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/heart-lake-near-brampton/, 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).
- Air Quality Health Index observations and forecasts, 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.
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
Heart Lake is 10 m deep at its deepest point, shallower than 71% of the 2,688 surveyed lakes in Ontario. It covers 0.17 km² and lies 2.2 km south of Mayfield.
Government surveys have recorded 22 fish species here, including largemouth bass, pumpkinseed and rainbow trout.
- Maximum depth
- 10 msurveyed 1980
- shallower than 71% of the 2,688 surveyed lakes in Ontario
- Area
- 0.17 km²
- smaller than 85% of the 18,731 lakes in Ontario
- Shoreline
- 2 km
- shorter than 92% of the 18,731 lakes in Ontario
- Fish species
- 22
- more than 98% of the 2,454 surveyed lakes in Ontario
- Elevation
- 252 m
Today on the water
8.6 °C
Observed at Brampton, as of 6:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. | 4 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.2 | ||||
| Temp. °C | 8 | 12 | 17 | 19 | 15 | 10 | 8 | 6 |
| Precip. % | 20 | 20 | 20 | 20 | 0 | 0 | 0 | 0 |
Today: Sunny. Becoming a mix of sun and cloud near noon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 19. UV index 4 or moderate.
Weather: Brampton (local forecast), as of 6:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:57 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:45 p.m.
- Civil dusk
- 7:14 p.m.
- Moonrise
- 6:19 a.m.
- Moonset
- 6:04 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Brampton, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Depth
46% of Heart Lake is shallower than 3 m, and 35% 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 1980 records a maximum depth of 10 m, drawn from 7 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 (1946–2018) that recorded them.
Forage fish and other species (11)
Forage fish
- Golden Shiner 12
- Central Mudminnow 7
- Bluntnose Minnow 6
- Fathead Minnow 4
- Creek Chub 2
- Blacknose Dace 1
- Brook Stickleback 1
- Common Shiner 1
- Spottail Shiner 1
Other
- Brown Bullhead 21
- White Sucker 10
Numbers are the surveys that recorded each species.
Stocking
Walleye4,497 fish in 6 years, most recently 2025
Brook Trout1,651 fish in 2 years, most recently 2022
Rainbow Trout1,000 fish in 1 year, most recently 2018
All stocking records (11)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2025 | Walleye | 900 | Fingerlings |
| 2024 | Walleye | 225 | Fingerlings |
| 2023 | Walleye | 1,111 | Fingerlings |
| 2023 | Walleye | 16 | Adult |
| 2022 | Brook Trout | 1,151 | Yearlings |
| 2022 | Walleye | 989 | Fingerlings |
| 2021 | Brook Trout | 500 | Yearlings |
| 2019 | Walleye | 70 | Fingerlings |
| 2019 | Walleye | 186 | Adult |
| 2018 | Rainbow Trout | 1,000 | Yearlings |
| 2017 | Walleye | 1,000 | Fingerlings |
Eating your catch
The provincial guide to eating fish (2026) sets limits for 3 species from Heart Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Largemouth Bass | 30-35 cm | 16 | 8 | Mercury |
| Rock Bass | 15-20 cm | 16 | 16 | Precautionary |
| Brown Bullhead | 25-30 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 16. Check seasons and limits before you fish.
Photos
Follow this lake
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