A river flowing through Maryland and Virginia, emptying into the Chesapeake Bay.

A geological formation in the eastern United States, primarily consisting of sandstone and shale.

पोटोमैक संरचना

English Usage: The Potomac Formation is known for its rich fossil deposits.

Hindi Usage: पोटोमैक संरचना अपनी समृद्ध जीवाश्मDeposits के लिए जानी जाती है।