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| Platte Lake | |
|---|---|
&sq=Qlik&lang=&file=File:Relief_map_of_USA_Michigan.png)  Platte Lake | |
| Location | Benzie County, Michigan (Northwest Michigan) |
| Coordinates | 44°41.48′N 86°05.63′W / 44.69133°N 86.09383°W |
| Primary inflows | Platte River |
| Primary outflows | Platte River (eventually Lake Michigan) |
| Basin countries | United States |
| Max. length | 3.3 miles (5.3 km) |
| Max. width | 1.6 miles (2.6 km) |
| Surface area | 2,550 acres (10.3 km2) |
| Average depth | 24 feet (7.3 m) |
| Max. depth | 95 feet (29 m) |
| Surface elevation | 584 feet (178 m)[1] |
Platte Lake (sometimes referred to as Big Platte Lake) is one of the many lakes located in the northwestern part of Michigan's lower peninsula. There are two lakes in Benzie County, Michigan based on the name Platte, the other being Little Platte.[2] Platte Lake covers 2,516 acres (1,018 ha) and is 3.3 miles (5.3 km) long and 1.6 miles (2.6 km) wide. The average depth of Platte Lake is 24 feet (7.3 m) deep. The deepest point of the lake is measured at 95 feet (29 m) deep. The Platte River flows through the lake at a speed of 120 cubic feet per second (3.4 m3/s). This means the residence time for the water in Platte Lake is 6 months. Also meaning that every hour 3,300,000 US gallons (12,000,000 L) of water are passing through Platte Lake. The Platte River flows through Platte Lake and continues downstream through Loon Lake until it finally reaches Lake Michigan.