A beautiful vision of Oregon's Crater Lake National Park as seen from space, photographed by an Expedition 13 crewmember on the International Space Station (ISS). Crater Lake is formed from the caldera (collapsed magma chamber) of a former volcano known as Mount Mazama. Part of the Cascades volcanic chain, Mount Mazama is situated between the Three Sisters volcanoes to the north and Mount Shasta to the south. While considered a dormant volcano, Crater Lake is part of the United States Geological Survey Cascades Volcano Observatory seismic monitoring network. The dark blue water coloration is typical of the 592 meter (1943 feet) deep Crater Lake; light blue-green areas to the southeast of Wizard Island (along the southern crater rim) most probably correspond to particulates either on or just below the water surface. The United States National Park Service maintains programs to monitor changes (both natural and human impacts) to Crater Lake. Credit: NASA #nasa #earthrightnow #earthfrom...