Upper Kasasway Lake
47.9451° N, 81.9289° W
Depth contours from the government survey. Not for navigation.
Download the depth map (SVG)Upper Kasasway Lake, Ontario. 47.9451° N, 81.9289° W
Maximum depth 38.1 m. Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/upper-kasasway-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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Upper Kasasway Lake is 38.1 m deep at its deepest point, deeper than 88% of the 2,688 surveyed lakes in Ontario. It covers 1.27 km² and lies 18 km southeast of Tionaga.
- Maximum depth
- 38.1 m
- deeper than 88% of the 2,688 surveyed lakes in Ontario
- Area
- 1.27 km²
- larger than 72% of the 18,731 lakes in Ontario
- Shoreline
- 12.7 km
- longer than 79% of the 18,731 lakes in Ontario
- Elevation
- 369 m
Today on the water
calm Estimated waves, next 12 hours: up to 0.1 m. Around 10 a.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast shore.
| Time | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. | 4 a.m. | 7 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | NW 15 | NW 20 | NW 20 | NW 20 | var. 5 | S 10 | var. 5 | SE 15 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Temp. °C | 4 | 7 | 9 | 6 | 4 | 2 | 0 | 2 |
| Precip. % | 30 | 20 | 20 | 0 | 0 | 0 | 0 | 0 |
Today: Cloudy with 30 percent chance of showers this morning then a mix of sun and cloud. Wind becoming northwest 20 km/h gusting to 40 late this morning. High 9. UV index 3 or moderate.
Weather: Gogama (local forecast), as of 9:05 a.m. EDT
Sun and moon
- Civil dawn
- 7:07 a.m.
- Sunrise
- 7:38 a.m.
- Sunset
- 6:50 p.m.
- Civil dusk
- 7:21 p.m.
- Moonrise
- 6:29 a.m.
- Moonset
- 6:09 p.m.
- Moon
- Waning crescent, 1% lit
Depth
20% of Upper Kasasway Lake is shallower than 3 m, and 16% 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 records a maximum depth of 38.1 m, drawn from 47 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.