Big Mud Lake
44.7955° N, 81.1648° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Big Mud Lake, Ontario. 44.7955° N, 81.1648° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/big-mud-lake-near-owen-sound/, 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).
Big Mud Lake covers 0.45 km², making it smaller than 53% of the 18,731 lakes in Ontario. It lies 3 km west of Colpoy's Bay.
Government surveys have recorded 10 fish species here, including northern pike, rock bass and yellow perch.
- Area
- 0.45 km²
- smaller than 53% of the 18,731 lakes in Ontario
- Shoreline
- 3 km
- shorter than 74% of the 18,731 lakes in Ontario
- Fish species
- 10
- more than 73% of the 2,454 surveyed lakes in Ontario
- Elevation
- 206 m
Today on the water
9 °C
Observed at Wiarton, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 9 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 20 | NW 20 | NW 30 | NW 30 | NW 30 | NE 10 | E 10 | SE 10 |
| Gusts km/h | 40 | 40 | 50 | 50 | 50 | |||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | |||
| Temp. °C | 4 | 6 | 10 | 13 | 15 | 13 | 9 | 6 |
| Precip. % | 40 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
Tonight: Partly cloudy with 60 percent chance of showers. Wind northwest 30 km/h gusting to 50. Low plus 4.
Weather: Wiarton (local forecast), as of 3:01 a.m. EDT
Sun and moon
- Civil dawn
- 7:03 a.m.
- Sunrise
- 7:32 a.m.
- Sunset
- 6:50 p.m.
- Civil dusk
- 7:19 p.m.
- Moonrise
- 6:25 a.m.
- Moonset
- 6:09 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 1 government surveys (1973–1973) that recorded them.
Forage fish and other species (7)
- Banded Killifish 1
- Blackchin Shiner 1
- Blacknose Shiner 1
- Central Mudminnow 1
- Common Shiner 1
- Golden Shiner 1
- Iowa Darter 1
Numbers are the surveys that recorded each species.
Fishing regulations: Fisheries Management Zone 16. Check seasons and limits before you fish.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.