Caviar Lake
49.3747° N, 93.7751° W
Depth contours from the 1984 government survey. Not for navigation.
Download the depth map (SVG)Caviar Lake, Ontario. 49.3747° N, 93.7751° W
Maximum depth 39.6 m (1984 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/caviar-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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Caviar Lake is 39.6 m deep at its deepest point, deeper than 88% of the 2,688 surveyed lakes in Ontario. It covers 31.2 km² and lies 6.9 km east of Whitefish Bay.
Government surveys have recorded 22 fish species here, including northern pike, lake whitefish and yellow perch.
- Maximum depth
- 39.6 msurveyed 1984
- deeper than 88% of the 2,688 surveyed lakes in Ontario
- Area
- 31.2 km²
- larger than 98% of the 18,731 lakes in Ontario
- Shoreline
- 182 km
- longer than 99% of the 18,731 lakes in Ontario
- Fish species
- 22
- more than 97% of the 2,454 surveyed lakes in Ontario
- Elevation
- 325 m
Today on the water
4.4 °C
Observed at Sioux Narrows, as of 2:00 a.m. CDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 1 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.
| Time | 3 a.m. | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | SE 10 | SE 10 | SE 10 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | |||
| Temp. °C | 4 | 5 | 8 | 11 | 13 | 13 | 14 | 13 |
| Precip. % | 20 | 20 | 20 | 20 | 30 | 30 | 10 | 10 |
Tonight: A few clouds. Wind northwest 20 km/h becoming light this evening. Low plus 4.
Weather: Sioux Narrows (local forecast), as of 2:07 a.m. CDT
Sun and moon
- Civil dawn
- 6:55 a.m.
- Sunrise
- 7:27 a.m.
- Sunset
- 6:36 p.m.
- Civil dusk
- 7:08 p.m.
- Moonrise
- 6:20 a.m.
- Moonset
- 5:55 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
16% of Caviar Lake is deeper than 20 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 1984 records a maximum depth of 39.6 m, drawn from 168 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 39 government surveys (2010–2010) that recorded them.
Forage fish and other species (10)
Forage fish
- Spottail Shiner 7
- Johnny Darter 3
- Logperch 3
- Emerald Shiner 2
- Mottled Sculpin 2
- Trout-Perch 2
- Blacknose Shiner 1
Other
- White Sucker 15
- Shorthead Redhorse 7
- Brown Bullhead 5
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 9 species from Caviar Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 8 | 4 | Mercury |
| Lake Whitefish | 45-50 cm | 16 | 16 | Precautionary |
| Largemouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Northern Pike | 55-60 cm | 8 | 4 | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Walleye | 40-45 cm | 16 | 4 | Mercury |
| Burbot (Ling) | 50-55 cm | 8 | 4 | Mercury |
| Cisco (Lake Herring) | 40-45 cm | 16 | 16 | Precautionary |
| White Sucker | 40-45 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 5. Check seasons and limits before you fish.
Water
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.