Gillies Lake
45.2047° N, 81.3356° W
Depth contours from the 1969 government survey. Not for navigation.
Download the depth map (SVG)Gillies Lake, Ontario. 45.2047° N, 81.3356° W
Maximum depth 32 m (1969 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/gillies-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.
Gillies Lake is 32 m deep at its deepest point, deeper than 82% of the 2,688 surveyed lakes in Ontario. It covers 2.17 km² and lies 4.1 km north of Dyer's Bay.
Government surveys have recorded 10 fish species here, including rock bass, smallmouth bass and yellow perch.
- Maximum depth
- 32 msurveyed 1969
- deeper than 82% of the 2,688 surveyed lakes in Ontario
- Area
- 2.17 km²
- larger than 82% of the 18,731 lakes in Ontario
- Shoreline
- 11.4 km
- longer than 77% of the 18,731 lakes in Ontario
- Water clarity
- 4.2 mSecchi depth, 2005
- clearer than 66% of the 1,251 monitored lakes in Ontario
- Fish species
- 10
- more than 73% of the 2,454 surveyed lakes in Ontario
- Elevation
- 219 m
Today on the water
8.3 °C
Observed at Tobermory, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 4 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 | 0.2 | 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: Tobermory (local forecast), as of 3:00 a.m. EDT
Sun and moon
- Civil dawn
- 7:04 a.m.
- Sunrise
- 7:33 a.m.
- Sunset
- 6:50 p.m.
- Civil dusk
- 7:20 p.m.
- Moonrise
- 6:26 a.m.
- Moonset
- 6:09 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
58% of Gillies Lake is shallower than 3 m, and 29% is deeper than 10 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 1969 records a maximum depth of 32 m, drawn from 13 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 21 government surveys (2012–2012) that recorded them.
Forage fish and other species (5)
- Common Shiner 5
- Bluntnose Minnow 2
- Emerald Shiner 2
- Mimic Shiner 1
- Mottled Sculpin 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 3 species from Gillies Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 8 | 4 | PCB |
| Smallmouth Bass | 35-40 cm | 8 | Do not eat | Mercury |
| Cisco (Lake Herring) | 30-35 cm | 8 | 4 | 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.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.