Katchewanooka Lake (Ontario): Depth Map, Fishing & Boat Launches

Map of Katchewanooka Lake — Katchewanooka Lake
44.4575° N, 78.2587° W

Shoreline and neighbouring water from open government data.

Download the map (SVG)

Katchewanooka Lake, Ontario. 44.4575° N, 78.2587° W

Not for navigation. Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/katchewanooka-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.
Photographs, Wikimedia Commons contributors. Each photo carries its own licence (CC0, public domain, CC BY or CC BY-SA), credited where shown.

Katchewanooka Lake covers 3.62 km², making it larger than 88% of the 18,731 lakes in Ontario. It lies beside Lakefield.

Government surveys have recorded 17 fish species here, including pumpkinseed, rock bass and yellow perch.

Area: 3.62 km²; larger than 88% of the 18,731 lakes in Ontario
Shoreline: 23.1 km; longer than 90% of the 18,731 lakes in Ontario
Water clarity: 5 mSecchi depth, 2025; clearer than 79% of the 1,251 monitored lakes in Ontario
Fish species: 17; more than 93% of the 2,454 surveyed lakes in Ontario
Elevation: 230 m

Today on the water

6.8 °C

Mainly ClearWind WSW 8 km/h

Observed at Peterborough, 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.

Hourly forecast, next 24 hours
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
Temp. °C	5	6	10	14	16	11	6	3
Precip. %	20	40	40	40	20	20	0	0

Tonight: Partly cloudy. 40 percent chance of showers this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 5.

Weather: Peterborough (local forecast), as of 3:02 a.m. EDT

Sun and moon

Civil dawn: 6:51 a.m.
Sunrise: 7:20 a.m.
Sunset: 6:39 p.m.
Civil dusk: 7:08 p.m.
Moonrise: 6:12 a.m.
Moonset: 5:57 p.m.
Moon: Waning crescent, 1% lit

Air Quality Health Index

2 low risk

Peterborough, as of 2:00 a.m. EDT

Follow this lake by email: a weekly summary of conditions.

Fish

Sport fish by the share of the 37 government surveys (2008–2014) that recorded them.

Pumpkinseed31 of 37
Rock Bass31 of 37
Yellow Perch31 of 37
Smallmouth Bass23 of 37
Walleye12 of 37
Muskellunge8 of 37
Largemouth Bass6 of 37
Black Crappie2 of 37
Bluegill1 of 37

Forage fish and other species (8)

Forage fish

Golden Shiner 12
Spottail Shiner 5
Blackchin Shiner 2
Logperch 2
Bluntnose Minnow 1

Other

White Sucker 20
Brown Bullhead 10
Common Carp 3

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 5 species from Katchewanooka Lake. Maximum meals per month:

Species	Length	General population	Sensitive population*	Contaminant
Largemouth Bass	30-35 cm	16	8	Mercury
Smallmouth Bass	35-40 cm	12	4	Mercury
Walleye	40-45 cm	16	4	Mercury
Yellow Perch	20-25 cm	16	8	Mercury
White Sucker	40-45 cm	16	16	Precautionary

* 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 17. Check seasons and limits before you fish.