Science In Alaska, a spectacular trove of dinosaur footprints

Herds of duck-billed dinosaurs in what is today Alaska's Denali National Park left behind 'one of the great track sites of the world.' 

By , Livescience.com

Perot Museum

A "world-class" dinosaur track site discovered in Alaska's Denali National Park shows that herds of duck-billed dinosaurs thrived under the midnight sun.