Smoothwater Lake
47.3942° N, 80.6772° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Smoothwater Lake, Ontario. 47.3942° N, 80.6772° W
Maximum depth 88.4 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/smoothwater-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.
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Smoothwater Lake is 88.4 m deep at its deepest point, deeper than 99% of the 2,688 surveyed lakes in Ontario. It covers 9.18 km² and lies 25 km southeast of Gowganda.
- Maximum depth
- 88.4 m
- deeper than 99% of the 2,688 surveyed lakes in Ontario
- Area
- 9.18 km²
- larger than 95% of the 18,731 lakes in Ontario
- Shoreline
- 31.1 km
- longer than 93% of the 18,731 lakes in Ontario
- Elevation
- 377 m
Sun and moon today
- Civil dawn
- 7:02 a.m.
- Sunrise
- 7:32 a.m.
- Sunset
- 6:46 p.m.
- Civil dusk
- 7:16 p.m.
- Moonrise
- 6:24 a.m.
- Moonset
- 6:04 p.m.
- Moon
- Waning crescent, 1% lit
Depth
31% of Smoothwater Lake is deeper than 50 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 records a maximum depth of 88.4 m, drawn from 40 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 Depths are from government surveys and may be outdated.