Loon Lake (Oregon)

Loon Lake
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Location	Douglas County, Oregon
Coordinates	43°35′13″N 123°50′14″W / 43.58694°N 123.83722°W / 43.58694; -123.83722
Type	Landslide-dammed lake, oligotrophic
Primary inflows	Lake Creek
Primary outflows	Mill Creek
Catchment area	89 sq mi (231 km2)[1]
Basin countries	United States
Max. length	2 mi (3 km)
Max. width	0.4 mi (0.6 km)
Surface area	294 acres (119 ha)[1]
Average depth	53 ft (16 m)[1]
Max. depth	105 ft (32 m)[1]
Water volume	15,700 acre⋅ft (19,400,000 m3)[1]
Residence time	1 month[1]
Shore length1	6.1 mi (9.8 km)[1]
Surface elevation	392 ft (119 m)[2][3]
1 Shore length is not a well-defined measure.

Loon Lake is a 294-acre (119 ha)^[1] lake in Douglas County in the Oregon Coast Range of the United States, 15 miles (24 km) east-southeast of Reedsport, Oregon, at an elevation of 392 feet (119 m).^[2] The lake is about 2 miles (3 km) long with a maximum width of about 0.4 miles (0.6 km), and is over 100 feet (30 m) deep in some places.

The lake is "a classic example of a landslide lake",^[1] dammed by a slide of sandstone blocks which fell into the Lake Creek valley about 1,400 years ago. The lake was discovered in 1852 and named for the loons found on its waters.