Map of Bluffpoint Lake with depth contours

Bluffpoint Lake

49.1767° N, 93.3745° W

Depth contours from the government survey. Not for navigation.

Download the depth map (SVG)

Bluffpoint Lake is 33.5 m deep at its deepest point, deeper than 83% of the 2,688 surveyed lakes in Ontario. It covers 5.11 km² and lies 35 km north of Northwest Bay.

Government surveys have recorded 13 fish species here, including lake trout, northern pike and yellow perch.

Maximum depth
33.5 m
deeper than 83% of the 2,688 surveyed lakes in Ontario
Area
5.11 km²
larger than 91% of the 18,731 lakes in Ontario
Shoreline
37.1 km
longer than 94% of the 18,731 lakes in Ontario
Fish species
13
more than 84% of the 2,454 surveyed lakes in Ontario
Elevation
365 m

Today on the water

6.6 °C

Partly CloudyWind S 10 km/h

Observed at Sioux Narrows, as of 5:00 a.m. CDT

choppy Estimated waves, next 12 hours: up to 0.2 m. Around 10 a.m., wind from the south: the south shore is sheltered, waves build toward the north shore.

Hourly forecast, next 24 hours
Time6 a.m.9 a.m.12 p.m.3 p.m.6 p.m.9 p.m.12 a.m.3 a.m.
Wind km/hS 10S 10S 15E 10SE 20SE 20SE 20SE 20
Gusts km/h40404040
Waves (est.) m0.10.10.20.1
Temp. °C89121516151211
Precip. %2020204010101010

Today: A mix of sun and cloud. 40 percent chance of rain this afternoon. Wind becoming southeast 20 km/h gusting to 40 late this afternoon. High 16. UV index 2 or low.

Weather: Sioux Narrows (local forecast), as of 5:04 a.m. CDT

Sun and moon

Civil dawn
6:53 a.m.
Sunrise
7:25 a.m.
Sunset
6:35 p.m.
Civil dusk
7:06 p.m.
Moonrise
6:18 a.m.
Moonset
5:54 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

25% of Bluffpoint Lake is shallower than 3 m, and 17% is deeper than 20 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 33.5 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 28 government surveys (2010–2010) that recorded them.

  • Lake Trout15 of 28
  • Northern Pike12 of 28
  • Yellow Perch12 of 28
  • Cisco8 of 28
  • Burbot4 of 28
  • Largemouth Bass3 of 28
Forage fish and other species (7)

Forage fish

  • Blackchin Shiner 4
  • Trout-Perch 4
  • Spottail Shiner 2
  • Johnny Darter 1
  • Logperch 1

Other

  • White Sucker 17
  • Northern Sunfish 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 Bluffpoint Lake. Maximum meals per month:

SpeciesLengthGeneral populationSensitive population*Contaminant
Lake Trout50-55 cm4Do not eatMercury
Largemouth Bass30-35 cm124Mercury
Northern Pike55-60 cm84Mercury
Burbot (Ling)50-55 cm4Do not eatMercury
White Sucker40-45 cm1612Precautionary

* 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 5. Check seasons and limits before you fish.