Lower Mazinaw Lake
44.8763° N, 77.1818° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Lower Mazinaw Lake, Ontario. 44.8763° N, 77.1818° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/lower-mazinaw-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.
- 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).
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
Lower Mazinaw Lake covers 4.42 km², making it larger than 90% of the 18,731 lakes in Ontario. It lies beside Bon Echo.
Government surveys have recorded 14 fish species here, including cisco, lake trout and yellow perch.
- Area
- 4.42 km²
- larger than 90% of the 18,731 lakes in Ontario
- Shoreline
- 16.1 km
- longer than 84% of the 18,731 lakes in Ontario
- Water clarity
- 4.6 mSecchi depth, 2025
- clearer than 73% of the 1,251 monitored lakes in Ontario
- Fish species
- 14
- more than 86% of the 2,454 surveyed lakes in Ontario
- Elevation
- 267 m
Today on the water
4.9 °C
Observed at Kaladar, as of 3:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.4 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 | 0.4 | ||||
| Temp. °C | 3 | 5 | 9 | 12 | 14 | 9 | 4 | 1 |
| Precip. % | 20 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Tonight: Partly cloudy. 40 percent chance of showers this evening. Wind west 30 km/h gusting to 50 becoming light this evening. Low plus 3.
Weather: Kaladar (local forecast), as of 3:00 a.m. EDT
Sun and moon
- Civil dawn
- 6:47 a.m.
- Sunrise
- 7:16 a.m.
- Sunset
- 6:34 p.m.
- Civil dusk
- 7:03 p.m.
- Moonrise
- 6:08 a.m.
- Moonset
- 5:52 p.m.
- Moon
- Waning crescent, 1% lit
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 17 government surveys (2008–2013) that recorded them.
Forage fish and other species (3)
Forage fish
- Fallfish 1
- Spoonhead Sculpin 1
Other
- White Sucker 2
Numbers are the surveys that recorded each species.
Stocking
Brook Trout4,802 fish in 10 years, most recently 2025
All stocking records (10)
| Year | Species | Fish | Stage |
|---|---|---|---|
| 2025 | Brook Trout | 500 | Yearlings |
| 2024 | Brook Trout | 500 | Yearlings |
| 2023 | Brook Trout | 400 | Yearlings |
| 2022 | Brook Trout | 500 | Yearlings |
| 2021 | Brook Trout | 500 | Yearlings |
| 2020 | Brook Trout | 500 | Yearlings |
| 2019 | Brook Trout | 500 | Yearlings |
| 2018 | Brook Trout | 500 | Yearlings |
| 2017 | Brook Trout | 402 | Yearlings |
| 2016 | Brook Trout | 500 | Yearlings |
Fishing regulations: Fisheries Management Zone 18. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 26 years between 1997 and 2025; the latest annual mean is 4.6 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.