The Great Kobuk Sand Dune is located in ...
The Great Kobuk Sand Dune is located 65 km behind Arctic circle. Summer temperature may reach as high as 29°C! The 30 meters high dune is one of Alaska curiosities. There are 3 sets of dunes in the Kobuk Valley national park - Great Kobuk, Little Kobuk and Hunt River Dune that together cover 40 square km, and comprise the largest active Arctic dune field in North America.