Cloud banks drape the eastern flanks of Silay (right center), the northernmost volcano on Negros Island. The compound andesitic stratovolcano contains the Malisbog solfatara field, which displays fumarolic activity and extensive sulfur deposits. Mandalagan volcano is visible at the bottom center of this Landsat image. The city of Bacolod lies along the western coast of the island at the lower left. NASA Landsat image, 2003 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).