An aerial view of an LED-illuminated American flag draped over Hoover Dam during the America250 event in Boulder City, Nev., on May 25, 2026.

Devastatingly low water levels at Lake Mead are now the backdrop of a massive patriotic display on Hoover Dam that was recently unveiled to celebrate the country’s 250th anniversary. 

At the heart of the display is a 300-by-150-foot, 2,000-pound American flag that has been draped over the dam and illuminated by red, white and blue LED lighting. According to a news release published by the Las Vegas Convention and Visitors Authority, the display is meant to launch several weeks of patriotic celebrations as part of the America250 initiative. 

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