Fossil collectors in Florida have discovered an ancient sinkhole, now at the bottom of a river, which holds the remains of animals rarely seen in the state, including a type of giant armadillo, giant ...
The 1.5 million acre Lake Mead National Recreation Area covers “mountains, canyons, valleys and two vast lakes,” the National ...
“Numerous unique fossils” have been found in the park ... Lake Mead is a reservoir formed by the Hoover Dam on the Colorado River and located in Nevada and Arizona. Temple Bar is about ...