How did windblown sand help form Moses Lake in Washington state?

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lake Lake Ann in North Cascades National Park, Washington, U.S., viewed from the park's Maple Loop Trail. The North Cascades National Park is a large wilderness area that preserves majestic mountain scenery, snowfields, glaciers, and other unique natural features.

Moses Lake in Washington state was formed when windblown sand accumulated to create a natural dam, which blocked the basin and allowed the lake to form. This process is an example of how wind action can play a significant role in the development of lake basins through the construction of dunes or dams.1