Long Lake
44.9987° N, 79.6052° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Long Lake, Ontario. 44.9987° N, 79.6052° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/long-lake-near-gravenhurst/, 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.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. 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).
Long Lake covers 1.34 km², making it larger than 73% of the 18,731 lakes in Ontario. It lies 1.2 km southeast of Bala.
Government surveys have recorded 2 fish species here: rainbow trout and splake.
- Area
- 1.34 km²
- larger than 73% of the 18,731 lakes in Ontario
- Shoreline
- 9.9 km
- longer than 73% of the 18,731 lakes in Ontario
- Water clarity
- 4 mSecchi depth, 2025
- clearer than 61% of the 1,251 monitored lakes in Ontario
- Fish species
- 2
- fewer than 60% of the 2,454 surveyed lakes in Ontario
- Elevation
- 227 m
Today on the water
7 °C
Observed at Port Carling, as of 5:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.3 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 | 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 | 0.3 | 0.3 | 0.1 | |||
| Temp. °C | 5 | 7 | 10 | 13 | 12 | 8 | 5 | 4 |
| Precip. % | 40 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 40 percent chance of showers this morning and early this afternoon. Clearing this afternoon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 14. UV index 4 or moderate.
Weather: Port Carling (local forecast), as of 5:01 a.m. EDT
Sun and moon
- Civil dawn
- 6:57 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:43 p.m.
- Civil dusk
- 7:13 p.m.
- Moonrise
- 6:18 a.m.
- Moonset
- 6:02 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Parry Sound, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
- Rainbow TroutStocked
- SplakeStocked
Stocking
Splake10,099 fish in 5 years, most recently 2024
Rainbow Trout2,996 fish in 2 years, most recently 2025
All stocking records (7)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2025 | Rainbow Trout | 2,000 | Yearlings |
| 2024 | Splake | 1,599 | Yearlings |
| 2022 | Splake | 2,000 | Yearlings |
| 2020 | Splake | 3,000 | Yearlings |
| 2018 | Splake | 2,000 | Yearlings |
| 2017 | Rainbow Trout | 996 | Yearlings |
| 2017 | Splake | 1,500 | Yearlings |
Fishing regulations: Fisheries Management Zone 15. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 12 years between 2004 and 2025; the latest annual mean is 4 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.