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Breathtaking aerial view of lush green forest and distant mountain range by a tranquil lake in Montana, USA

Flathead Lake reaches 370.7 feet deep

Flathead Lake’s depth helps govern how its water stores heat and mixes through the seasons. The lake reaches 370.7 feet (113 meters) at its deepest mapped point. Its mean depth is 164.7 feet (50.2 meters), which describes the average across the broad underwater basin. The precise figures come from the Flathead Lake Biological Station at…

Life jackets available from a loaner board near Lake Keowee

Why Lake Keowee can be dangerous

Water that looks calm from a Lake Keowee cove can become deep within a few steps. A fall from a boat can add cold shock before a swimmer has recovered from the surprise. Near power facilities, changing flows create another hazard, while a summer storm can raise waves across open water. Each condition is manageable…

Aerial view of Lake Tahoe's forested shoreline and boats

Lake Tahoe is natural, with a regulated outlet

Lake Tahoe looks so vast and deep that a dam seems almost irrelevant, yet gates at its outlet influence when water enters the Truckee River. The lake itself is a natural body of water. Fault movement created its mountain basin millions of years before people built the structure at Tahoe City. The apparent contradiction comes…