An 8-kilometer (5-mile) wide crater of possible impact origin is shown in this view of an isolated part of the Bolivian Amazon from the Shuttle Radar Topography Mission (SRTM).
Located on the Meseta Central, a vast plateau covering about 40 percent of the country, this city of 3 million is very near the exact geographic center of the Iberian Peninsula.
This depiction of an area south of San Martin de Los Andes, Argentina, was the first Shuttle Radar Topography Mission view of the tallest mountain chain in the western hemisphere.