Big Rock Lake
45.215° N, 78.1983° W
Big Rock Lake, Ontario. 45.215° N, 78.1983° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/big-rock-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.
- 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).
Big Rock Lake covers 0.66 km², Ontario. It lies 31 km west of Bancroft.
Government surveys have recorded 1 fish species here: largemouth bass.
- Area
- 0.66 km²
- Shoreline
- 7.7 km
- Fish species
- 1
- Elevation
- 409 m
Today on the water
4.2 °C
Observed at Haliburton, as of 7:00 a.m. EDT
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 | SE 10 |
| Gusts km/h | 50 | 50 | ||||||
| Temp. °C | 5 | 9 | 12 | 13 | 8 | 3 | 0 | -1 |
| Precip. % | 40 | 40 | 20 | 20 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud. 40 percent chance of showers this morning and early this afternoon. Wind becoming northwest 30 km/h gusting to 50 near noon. High 13. UV index 4 or moderate.
Weather: Haliburton (local forecast), as of 7:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:51 a.m.
- Sunrise
- 7:21 a.m.
- Sunset
- 6:38 p.m.
- Civil dusk
- 7:07 p.m.
- Moonrise
- 6:13 a.m.
- Moonset
- 5:56 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Dorset, as of 7:00 a.m. EDT
Fish
Sport fish by the share of the 1 government surveys (2024–2024) that recorded them.
Fishing regulations: Fisheries Management Zone 15. Check seasons and limits before you fish.