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Big Spirit Lake is a natural body of water, approximately 5,684 acres (2,300 ha) in area, in Dickinson County in northwest Iowa in the United States. It is part of the chain of lakes known as the Iowa Great Lakes , the northern shore of the lake straddles the border with Minnesota .
There are seven lakes in the region totaling 12,687 acres (5,134 ha) [2] with the three principal lakes of the group being Big Spirit Lake, [3] West Okoboji Lake, [4] and East Okoboji Lake. [5] [6] They are the largest natural lakes in the state of Iowa. The largest, Spirit Lake, is 5,684 acres (2,300 ha). [1]
The towns of Spirit Lake and Okoboji, ... The lake is shallow, with an average depth of 10 ft (3.0 m) and a maximum depth of 22 ft (6.7 m). ... Big Spirit Lake;
The water level of Spirit Lake is maintained at about 3,406 ft (1,040 m) by draining water through Spirit Lake Outlet Tunnel, a gravity-feed tunnel completed in 1985. The 8,465-foot-long (2,580 m) tunnel was cut through Harrys Ridge to South Coldwater Creek, which flows to Coldwater Lake and into the North Fork of the Toutle River.
The lake's maximum depth is 136 feet (41 m), making it the deepest lake in Iowa and second in size only to Spirit Lake. The mean depth is 39 feet (12 m). The mean depth is 39 feet (12 m). The drainage area of the lake is approximately 125 square miles (320 km 2 ).
Get the Spirit Lake, ID local weather forecast by the hour and the next 10 days.
Therefore, mean depth figures are not available for many deep lakes in remote locations. [9] The average lake on Earth has the mean depth 41.8 meters (137.14 feet) [9] The Caspian Sea ranks much further down the list on mean depth, as it has a large continental shelf (significantly larger than the oceanic basin that contains its greatest depths).
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