Located on Russia's Kamchatka Peninsula, Klyuchevskaya (also spelled Kliuchevskoi) is one of the world's most active volcanoes. More than 100 flank eruptions have occurred at the stratovolcano in the past 3,000 years. Twelve confirmed eruptions have occurred since 2000. Klyuchevskaya has been erupting since August 15, 2013, though the intensity of activity surged in October. When the Operational Land Imager (OLI) on Landsat 8 flew over in the afternoon of October 20, multiple lava flows streamed down Klyuchevskaya's northern and western flanks. In this natural-color image, snow and clouds are white, the ash plume is light gray, and forests (with trees tall enough to stand above the snow cover) are dark brown. While the most explosive activity had subsided by October 20, lava flows continue and Klyuchevskaya remains seismically active.