Roslyn Lake
49.3114° N, 87.4769° W
Roslyn Lake, Ontario. 49.3114° N, 87.4769° W
Maximum depth 21.3 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/roslyn-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.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. 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).
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
Roslyn Lake is 21.3 m deep at its deepest point. It covers 6.99 km² and lies 52 km south of Greenstone, Ontario.
- Maximum depth
- 21.3 m
- Area
- 6.99 km²
- Shoreline
- 48.4 km
- Elevation
- 400 m
Today on the water
4.6 °C
Observed at Greenstone (Beardmore), as of 3:00 a.m. EDT
| 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 10 | W 10 | var. 5 | var. 5 | S 10 | SE 10 | SE 20 | SE 20 |
| Gusts km/h | 40 | |||||||
| Temp. °C | 4 | 2 | 5 | 9 | 12 | 11 | 9 | 8 |
| Precip. % | 20 | 0 | 0 | 0 | 0 | 0 | 20 | 20 |
Tonight: Cloudy. 40 percent chance of showers early this evening. Clearing near midnight. Wind west 30 km/h gusting to 50 becoming north 20 then light this evening. Low plus 2.
Weather: Greenstone (Beardmore) (local forecast), as of 3:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:29 a.m.
- Sunrise
- 8:01 a.m.
- Sunset
- 7:11 p.m.
- Civil dusk
- 7:43 p.m.
- Moonrise
- 6:54 a.m.
- Moonset
- 6:30 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Depth
The government depth survey records a maximum depth of 21.3 m, drawn from 13 depth contours.
Not for navigation. Depths are from government surveys and may be outdated.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.