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Map of Bluffy Lake with depth contours

Bluffy Lake

50.8161° N, 92.9631° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Bluffy Lake, Ontario. 50.8161° N, 92.9631° W

Maximum depth 15.2 m. Scale bar on the map.

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/on/bluffy-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.
  • Bathymetry lines and survey index, 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).
  • Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.

Bluffy Lake is 15.2 m deep at its deepest point, shallower than 55% of the 2,688 surveyed lakes in Ontario. It covers 24.9 km² and lies 22 km northeast of Ear Falls.

Government surveys have recorded 11 fish species here, including walleye, northern pike and cisco.

Maximum depth
15.2 m
shallower than 55% of the 2,688 surveyed lakes in Ontario
Area
24.9 km²
larger than 98% of the 18,731 lakes in Ontario
Shoreline
83.2 km
longer than 97% of the 18,731 lakes in Ontario
Fish species
11
more than 77% of the 2,454 surveyed lakes in Ontario
Elevation
373 m

Today on the water

0.6 °C

Wind ENE 2 km/h

Observed at Ear Falls, as of 4:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.4 m. Around 4 p.m., wind from the southeast: the southeast shore is sheltered, waves build toward the northwest shore.

Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hS 10S 10S 20E 10SE 30SE 30SE 30SE 20
Gusts km/h50505040
Waves (est.) m0.10.10.20.10.4
Temp. °C13810111098
Precip. %2020206060601010

Tonight: A few clouds. Wind northwest 20 km/h gusting to 40 becoming light this evening. Low plus 1.

Weather: Ear Falls (local forecast), as of 4:02 a.m. CDT

Sun and moon

Civil dawn
6:52 a.m.
Sunrise
7:25 a.m.
Sunset
6:31 p.m.
Civil dusk
7:04 p.m.
Moonrise
6:18 a.m.
Moonset
5:50 p.m.
Moon
Waning crescent, 1% lit

Data Source: Environment and Climate Change Canada. Local times.

How waves are estimated

Significant wave height from the forecast hourly wind and the open-water distance (fetch) upwind, using the SMB method (US Army Corps of Engineers Shore Protection Manual, 1984), rounded up to the next 0.1 m. It is not a measurement: gusts, leftover swell and shoals can make water rougher. Under 0.2 m: calm; 0.2–0.5 m: choppy; over 0.5 m: rough.

Depth

48% of Bluffy Lake is shallower than 3 m, and 38% is deeper than 5 m.

How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).

The government depth survey records a maximum depth of 15.2 m, drawn from 39 depth contours.

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

Fish

Sport fish by the share of the 30 government surveys (2009–2009) that recorded them.

  • Walleye30 of 30
  • Northern Pike25 of 30
  • Cisco19 of 30
  • Yellow Perch17 of 30
  • Lake Whitefish8 of 30
  • Burbot3 of 30
Forage fish and other species (5)

Forage fish

  • Trout-Perch 13
  • Spottail Shiner 11
  • Emerald Shiner 10

Other

  • White Sucker 14
  • Shorthead Redhorse 3

Numbers are the surveys that recorded each species.

Eating your catch

The provincial guide to eating fish (2026) sets limits for 2 species from Bluffy Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Northern Pike55-60 cm4Do not eatMercury
Walleye40-45 cm4Do not eatMercury

* 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 4. Check seasons and limits before you fish.