Thumb Lake

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Thumb Lake

Location	Charlevoix County, Michigan
Coordinates	45°11′N 84°45′WCoordinates: 45°11′N 84°45′W
Basin countries	United States
Surface area	484 acres (2.0 km²)
Max. depth	152 ft (46 m)

Michigan's Thumb Lake - Boat Launch Area

Thumb Lake, also known as Lake Louise, is a lake located in Charlevoix County in the U.S. state of Michigan. The name of the lake (Thumb) is due to its shape, which is elongated in the east-west direction. One large island sits in the lakes western basin. The total surface area of the lake is 484 acres (2.0 km²), with maximum depths of 152 feet (46 m), and possesses several other deep holes characteristic of a kettle lake of which this is one.

The lake is nestled in the highlands due east of Boyne Falls, centered at 45°11′N, 84°45′W, and is surrounded by lovely wooded hills. Because of its great depth, and derth of run-off into the lake, its waters are exceptionally clear and pure, and like many lakes in this part of the state, exhibit a beautiful turquoise coloraton. The lake is renowned for its population of splake, a stocked hybrid species (lake trout and brook trout), which inhabit the lake's cold, crystalline depths, as well as fine fishing for other species such as yellow perch, smallmouth bass, northern pike, largemouth bass, and smelt. Public access is available on the Eastern shore of the lake in the form of a park with swimming beach, and on the South-western shore in the form of a boat launch.