Tatnall Lake
48.6783° N, 84.1181° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Tatnall Lake, Ontario. 48.6783° N, 84.1181° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/tatnall-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.
- Fisheries Management Zones, 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.
Tatnall Lake covers 1.52 km², making it larger than 76% of the 18,731 lakes in Ontario. It lies 5.4 km east of Mosher.
Government surveys have recorded 8 fish species here, including northern pike, yellow perch and cisco.
- Area
- 1.52 km²
- larger than 76% of the 18,731 lakes in Ontario
- Shoreline
- 12.9 km
- longer than 80% of the 18,731 lakes in Ontario
- Fish species
- 8
- more than 65% of the 2,454 surveyed lakes in Ontario
- Elevation
- 370 m
Sun and moon today
- Civil dawn
- 7:16 a.m.
- Sunrise
- 7:47 a.m.
- Sunset
- 6:58 p.m.
- Civil dusk
- 7:30 p.m.
- Moonrise
- 6:39 a.m.
- Moonset
- 6:17 p.m.
- Moon
- Waning crescent, 1% lit
Fish
Sport fish by the share of the 15 government surveys (2011–2011) that recorded them.
Forage fish and other species (5)
Forage fish
- Common Shiner 5
- Trout-Perch 4
- Lake Chub 2
- Blacknose Shiner 1
Other
- White Sucker 8
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 1 species from Tatnall Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 2 | 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 7. Check seasons and limits before you fish.