Upper Island Lake
46.6739° N, 84.2531° W
Depth contours from the 2021 government survey. Not for navigation.
Download the depth map (SVG)Upper Island Lake, Ontario. 46.6739° N, 84.2531° W
Maximum depth 30 m (2021 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/upper-island-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.
- Fish stocking for recreational purposes, 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).
- Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.
Upper Island Lake is 30 m deep at its deepest point, deeper than 78% of the 2,688 surveyed lakes in Ontario. It covers 1.57 km² and lies beside Island Lake.
Government surveys have recorded 1 fish species here: lake trout.
- Maximum depth
- 30 msurveyed 2021
- deeper than 78% of the 2,688 surveyed lakes in Ontario
- Area
- 1.57 km²
- larger than 76% of the 18,731 lakes in Ontario
- Shoreline
- 9.6 km
- longer than 73% of the 18,731 lakes in Ontario
- Water clarity
- 3.5 mSecchi depth, 2017
- less clear than 51% of the 1,251 monitored lakes in Ontario
- Fish species
- 1
- fewer than 100% of the 2,454 surveyed lakes in Ontario
- Elevation
- 319 m
Today on the water
10.5 °C
Observed at Sault Ste. Marie, as of 7:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 11 a.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 8 a.m. | 11 a.m. | 2 p.m. | 5 p.m. | 8 p.m. | 11 p.m. | 2 a.m. | 5 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | W 20 | W 20 | var. 5 | SE 10 | SE 10 | SE 10 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | |||||
| Waves (est.) m | 0.1 | 0.2 | 0.2 | 0.1 | ||||
| Temp. °C | 10 | 11 | 13 | 13 | 10 | 7 | 3 | 7 |
| Precip. % | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 30 percent chance of showers early this morning. Becoming sunny this afternoon. Wind becoming west 20 km/h gusting to 40 late this morning. High 13. UV index 3 or moderate.
Weather: Sault Ste. Marie (local forecast), as of 7:05 a.m. EDT
Sun and moon
- Civil dawn
- 7:16 a.m.
- Sunrise
- 7:46 a.m.
- Sunset
- 7:01 p.m.
- Civil dusk
- 7:31 p.m.
- Moonrise
- 6:39 a.m.
- Moonset
- 6:19 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Sault Ste. Marie, as of 6:00 a.m. EDT
Depth
15% of Upper Island Lake is shallower than 3 m, and 40% 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 2021 records a maximum depth of 30 m, drawn from 117 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
- Lake TroutStocked
Stocking
Lake Trout10,097 fish in 11 years, most recently 2026
All stocking records (14)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2026 | Lake Trout | 1,000 | Yearlings |
| 2025 | Lake Trout | 1,000 | Yearlings |
| 2024 | Lake Trout | 675 | Yearlings |
| 2023 | Lake Trout | 1,000 | Yearlings |
| 2023 | Lake Trout | 112 | Adult |
| 2022 | Lake Trout | 1,000 | Yearlings |
| 2021 | Lake Trout | 1,000 | Yearlings |
| 2021 | Lake Trout | 100 | Adult |
| 2020 | Lake Trout | 1,000 | Yearlings |
| 2019 | Lake Trout | 1,210 | Yearlings |
| 2018 | Lake Trout | 650 | Yearlings |
| 2017 | Lake Trout | 650 | Yearlings |
| 2017 | Lake Trout | 50 | Adult |
| 2016 | Lake Trout | 650 | Yearlings |
Fishing regulations: Fisheries Management Zone 10. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 2 years between 2012 and 2017; the latest annual mean is 3.5 m.
Getting on the water
1 listed boat launch. marks launches on the map.
- Boat launch