Claireville Reservoir
43.737° N, 79.6294° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Claireville Reservoir, Ontario. 43.737° N, 79.6294° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/claireville-reservoir/, 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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Claireville Reservoir covers 0.27 km², making it smaller than 69% of the 18,731 lakes in Ontario. It lies beside Gorewood Acres.
Government surveys have recorded 19 fish species here, including pumpkinseed, largemouth bass and rock bass.
- Area
- 0.27 km²
- smaller than 69% of the 18,731 lakes in Ontario
- Shoreline
- 3.4 km
- shorter than 69% of the 18,731 lakes in Ontario
- Water clarity
- 0.4 mSecchi depth, 2001
- less clear than 100% of the 1,251 monitored lakes in Ontario
- Fish species
- 19
- more than 95% of the 2,454 surveyed lakes in Ontario
- Elevation
- 163 m
Today on the water
7.2 °C
Observed at Brampton, as of 4:00 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 | 5 a.m. | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 6 | 9 | 14 | 18 | 19 | 13 | 9 | 7 |
| Precip. % | 20 | 20 | 20 | 20 | 20 | 0 | 0 | 0 |
Tonight: Partly cloudy with 30 percent chance of showers this evening. Clearing overnight. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low 6.
Weather: Brampton (local forecast), as of 4:01 a.m. EDT
Sun and moon
- Civil dawn
- 6:56 a.m.
- Sunrise
- 7:25 a.m.
- Sunset
- 6:45 p.m.
- Civil dusk
- 7:13 p.m.
- Moonrise
- 6:18 a.m.
- Moonset
- 6:03 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
3 low risk
Toronto West, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 20 government surveys (1974–2015) that recorded them.
Forage fish and other species (14)
Forage fish
- Bluntnose Minnow 8
- Common Shiner 6
- Fathead Minnow 3
- Creek Chub 2
- Rainbow Darter 2
- Rosyface Shiner 1
- Sand Shiner 1
- Spottail Shiner 1
Other
- White Sucker 16
- Brown Bullhead 7
- Common Carp 4
- Goldfish 2
- Yellow Bullhead 2
- American Eel 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 6 species from Claireville Reservoir. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Largemouth Bass | 30-35 cm | 12 | 4 | Mercury |
| Rock Bass | 15-20 cm | 12 | 4 | Mercury |
| Yellow Perch | 20-25 cm | 16 | 8 | Mercury |
| Brown Bullhead | 25-30 cm | 8 | Do not eat | Mercury, PCB |
| Common Carp | 50-55 cm | 8 | 4 | PCB |
| White Sucker | 40-45 cm | 8 | Do not eat | Mercury |
* 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.
Water
Clarity was measured with a Secchi disk in 2 years between 1995 and 2001; the latest annual mean is 0.4 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.