Easter Island, one of the most remote locations on Earth, is more than 3,200 km (2,000 mi) from the closest populations on Tahiti or Chile. Less than 25 km (15 mi) long, the island is dominated by volcanic landforms, including the large crater Rana Kao at the southwest end of the island and a line of cinder cones that stretch north from the central mountain. A final feature (difficult to see) is the very long runway (Chile's longest) near Rana Kao. The airport serves as an emergency space shuttle landing site. Image courtesy of NASA.