Robertson Lake
45.0567° N, 76.6561° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Robertson Lake, Ontario. 45.0567° N, 76.6561° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/robertson-lake-near-mississippi-mills/, 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.
- Fishing access 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.
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
Robertson Lake covers 0.76 km², making it larger than 61% of the 18,731 lakes in Ontario. It lies beside Lavant.
Government surveys have recorded 7 fish species here, including bluegill, largemouth bass and northern pike.
- Area
- 0.76 km²
- larger than 61% of the 18,731 lakes in Ontario
- Shoreline
- 6.8 km
- longer than 62% of the 18,731 lakes in Ontario
- Water clarity
- 8 mSecchi depth, 2002
- clearer than 98% of the 1,251 monitored lakes in Ontario
- Fish species
- 7
- more than 61% of the 2,454 surveyed lakes in Ontario
- Elevation
- 286 m
Today on the water
10.6 °C
Observed at Sharbot Lake, as of 10:00 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 | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. | 8 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.1 | ||||
| Temp. °C | 10 | 13 | 14 | 8 | 3 | 1 | 0 | 1 |
| Precip. % | 40 | 40 | 40 | 20 | 20 | 0 | 0 | 0 |
Today: Mainly cloudy with 40 percent chance of showers. Wind becoming northwest 30 km/h gusting to 50 near noon. High 14. UV index 3 or moderate.
Weather: Sharbot Lake (local forecast), as of 10:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:45 a.m.
- Sunrise
- 7:14 a.m.
- Sunset
- 6:32 p.m.
- Civil dusk
- 7:01 p.m.
- Moonrise
- 6:06 a.m.
- Moonset
- 5:50 p.m.
- Moon
- Waning crescent, 1% lit
Fish
Sport fish by the share of the 1 government surveys (2012–2012) that recorded them.
Forage fish and other species (2)
- Banded Killifish 1
- Bluntnose Minnow 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 Robertson Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 8 | 4 | Mercury |
| Pumpkinseed | 15-20 cm | 16 | 8 | Mercury |
| Rock Bass | 15-20 cm | 8 | 4 | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
| Walleye | 40-45 cm | 12 | 4 | Mercury |
| Yellow Perch | 20-25 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 18. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 6 years between 1996 and 2002; the latest annual mean is 8 m.
Getting on the water
1 listed boat launch. marks launches on the map.
- Boat launch