Forget heavy concrete for a moment—the tallest dam in the U.S. doesn't need it. About 70 miles north of Sacramento along the Feather River in the Sierra-Nevada foothills, this earthfill dam ...

William Campbell / Getty Images. Montana's mighty Fort Peck Dam, constructed from 1933 to 1940, remains an impressive feat of New Deal-era ingenuity as the largest hydraulically filled dam in the ...

The dam, located on the southern edge of Wood Buffalo National Park in Northern Alberta, central Canada, was spotted by experts monitoring the size and spread of beaver dams in North America.

Before a N.C. dam is removed, biologists search for America’s largest salamander Before old mill dams are demolished in the North Carolina mountains, a search and rescue operation begins for the ...

Before old mill dams are demolished in the North Carolina mountains, a search and rescue operation begins for the country's largest salamanders. Search Query Show Search. News/Noticias.