Boom Lake
46.31° N, 78.7306° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Boom Lake, Ontario. 46.31° N, 78.7306° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/boom-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.
- 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.
Boom Lake covers 0.46 km², making it smaller than 53% of the 18,731 lakes in Ontario. It lies 1 km southwest of Mattawa.
Government surveys have recorded 8 fish species here, including smallmouth bass, walleye and northern pike.
- Area
- 0.46 km²
- smaller than 53% of the 18,731 lakes in Ontario
- Shoreline
- 4.6 km
- shorter than 55% of the 18,731 lakes in Ontario
- Fish species
- 8
- more than 69% of the 2,454 surveyed lakes in Ontario
- Elevation
- 150 m
Today on the water
4.1 °C
Observed at North Bay, as of 3:00 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 | 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 10 | W 10 | NW 20 | W 20 | NW 20 | N 10 | NE 10 | E 10 |
| Gusts km/h | 40 | |||||||
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.2 | ||||
| Temp. °C | 5 | 4 | 7 | 11 | 14 | 11 | 6 | 4 |
| Precip. % | 30 | 30 | 30 | 20 | 20 | 0 | 0 | 0 |
Tonight: Mainly cloudy with 30 percent chance of showers. Wind west 20 km/h gusting to 40 becoming light early this evening. Low plus 4.
Weather: North Bay (local forecast), as of 3:01 a.m. EDT
Sun and moon
- Civil dawn
- 6:54 a.m.
- Sunrise
- 7:24 a.m.
- Sunset
- 6:39 p.m.
- Civil dusk
- 7:09 p.m.
- Moonrise
- 6:15 a.m.
- Moonset
- 5:57 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
North Bay, 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 10 government surveys (2018–2019) that recorded them.
Forage fish and other species (4)
Forage fish
- Fallfish 1
- Johnny Darter 1
Other
- White Sucker 2
- Mooneye 1
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 4 species from Boom Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 4 | Do not eat | Mercury |
| Smallmouth Bass | 35-40 cm | 4 | Do not eat | Mercury |
| Walleye | 40-45 cm | 8 | Do not eat | Mercury, PFAS |
| White Sucker | 40-45 cm | 2 | Do not eat | PFAS |
* 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 11. Check seasons and limits before you fish.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.