Finger lake

A finger lake, also known as a fjord lake or trough lake, is "a narrow linear body of water occupying a glacially overdeepened valley and sometimes impounded by a morainic dam." Where one end of a finger lake is drowned by the sea, it becomes a fjord or sea-loch.

For other uses, see Finger Lake.
"Trough lake" redirects here. For the lake in Antarctica, see Trough Lake.
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