Tasso Lake
45.4591° N, 78.9336° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Tasso Lake, Ontario. 45.4591° N, 78.9336° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/tasso-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.
- 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.
- 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).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Tasso Lake covers 1.77 km², making it larger than 79% of the 18,731 lakes in Ontario. It lies 7.1 km north of Limberlost Lodge.
Government surveys have recorded 7 fish species here, including pumpkinseed, smallmouth bass and yellow perch.
- Area
- 1.77 km²
- larger than 79% of the 18,731 lakes in Ontario
- Shoreline
- 24.8 km
- longer than 90% of the 18,731 lakes in Ontario
- Water clarity
- 3.7 mSecchi depth, 2025
- clearer than 54% of the 1,251 monitored lakes in Ontario
- Fish species
- 7
- more than 61% of the 2,454 surveyed lakes in Ontario
- Elevation
- 399 m
Today on the water
4.8 °C
Observed at Oxtongue Lake, as of 3:00 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 | 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 | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |||
| Temp. °C | 2 | 3 | 7 | 11 | 13 | 10 | 4 | -1 |
| Precip. % | 20 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Tonight: Partly cloudy. 60 percent chance of showers this evening. Risk of a thunderstorm early this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 2.
Weather: Oxtongue Lake (local forecast), as of 3:03 a.m. EDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:24 a.m.
- Sunset
- 6:40 p.m.
- Civil dusk
- 7:10 p.m.
- Moonrise
- 6:16 a.m.
- Moonset
- 5:59 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Dorset, as of 3:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 4 government surveys (2003–2014) that recorded them.
Forage fish and other species (4)
Forage fish
- Creek Chub 4
- Brook Stickleback 1
- Common Shiner 1
Other
- White Sucker 2
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 2 species from Tasso Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Lake Trout | 50-55 cm | 16 | 12 | Precautionary |
| Smallmouth Bass | 35-40 cm | 4 | Do not eat | Mercury |
* 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 15. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 28 years between 1992 and 2025; the latest annual mean is 3.7 m.
Getting on the water
1 listed boat launch; 1 with parking listed. marks launches on the map.
- Toad Lake
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.