Stock Photo - The Lake Palanskoye in northern Kamchatka was formed when a large landslide disrupted the drainage pattern, forming a natural dam. The area is volcanically and tectonically active and it is likely that the landslide __ which covers about 80 square kilometers 30 square miles __ was triggered by an earthquake sometime in the past 10,000 years. The source area of the landslide is the ridge between the two bright rocky features to the lower left of the lake. In 3_D, the steep topographic scar at the head of the slide and the broad expanse of hummocky landslide debris that covers the valley just below the lake are visible. This Landsat / SRTM stereoscopic view is an enhanced true color image: Vegetation appears green, rocks are brownish, snow is white and water such as the lake appears very dark.This stereoscopic image pair was generated using topographic data from SRTM combined with a Landsat 7 satellite image collected the previous summer. The topography data were used to create two differing perspectives of a single image __ one for each eye. Depending on its elevation, each point in the image was shifted slightly. When stereoscopically merged, the result is a vertically exaggerated view of the Earth´s surface in its full three dimensions.Landsat satellites have provided visible light and infrared images of the Earth continuously since 1972. SRTM topographic data match the 30 meter 99 foot spatial resolution of most Landsat images and will provide a valuable complement for studying the historic and growing Landsat data archive. The Shuttle Radar Topography Mission SRTM, launched on February 11, 2000, used the same radar instrument that comprised the Spaceborne Imaging Radar_C/X_Band Synthetic Aperture Radar SIR_C/X_SAR that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three_dimensional measurements of the Earth´s surface on its 11_day mission. To collect the 3_D data, engineers added a 60_meter_long 200_foot mast, an additional C_band imaging antenna, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration NASA, the National Imagery and Mapping Agency NIMA and the German DLR and Italian ASI space agencies. It is managed by NASA´s Jet Propulsion Laboratory, Pasadena, CA, for NASA´s Earth Science Enterprise, Washington, DC.Size: 48 by 20 kilometers 30 by 12 miles Location: 58.8 deg. North lat., 160.8 deg. East lon.Orientation: North toward the left Image Data: Landsat bands 1, 2, and 3 shown in blue, green and red Original Data Resolution: SRTM and Landsat, 30 meters 99 feet Date Acquired: February 12, 2000 SRTM, August 1, 1999 Landsat