Our Lake

Stewart Lake is situated in the District Municipality of Muskoka. The lake supports a community that combines both full-time and seasonal residents, offering recreational/social opportunities, esthetic benefits and drinking water to the 113 cottages on its shores and to the residents of MacTier.

Geologically, the area encompassing the lake is known as the Pre-Cambrian Shield, characterized by its rolling hills, shallow soils and granite-based bedrock.  The lake is part of the Lake Joseph subwatershed, which drains into the larger Muskoka River Watershed. The lake is fed gradually through a wetland on the southwest bay of the lake. It’s waters flow out from a control structure on the northeast bay into an immediate drainage basin approximately 7.5 square kilometers in size.

Stewart Lake Characteristics

Location

Province of Ontario

Region

The District Municipality of Muskoka

Township

The Township of Georgian Bay & The Township of Muskoka Lakes

Community

MacTier

 

GPS Coordinates  •  45°8’0” N  79°46’0” W


Lake-Scale Characteristics

Lake Area

1.55 km²

Perimeter – 10.1 km
Island Shoreline – 0.5 km
Elevation – 239 m
(metres above sea level)

Maximum Lake Depth

20.4 m

Mean Lake Depth – 8.2 m
Wetland Area – 6.56%
Littoral Zone – 53%
Flushing Rate  – 2.3 years

Limnology

micrograms per litre – 8
Secchi Depth – 3.3m

Phosphorus- ten year average (2000-2010)


 


Summary of Land Use

Natural Beach

64.69 m – 0.53%

Man Made Beach

519.22 m – 4.28%

Mixed Forest

699.07 m – 5.77%

Thinned Forest

82.89 m – 0.68%

Overgrowth

667.21 m – 5.59%

Rock

5,631.63 m – 46.46%

Shrubs

3,870.80 m – 31.94%

Wetland

46.35 m – 0.38%

 

Stone Shorewall

372.42 m – 3.07%

Wood Shorewall

90.17 m – 0.74%

Buffered Lawn

42.55 m – 0.36%

Unbuffered Lawn

22.57 m – 0.19%

Total Shoreline

12,120.57 m – 100.00%

Natural Shoreline

10,989.80 m – 90.67%

Altered Shoreline

1,130.82 m – 9.33%

 

In June of 2010 the District Municipality of Muskoka conducted a shoreline survey. The resulting map shows each property that borders the shoreline of Stewart Lake and indicates the type of shoreline present. The survey also includes the percentage of each shoreline type that is present on Stewart Lake.