Mostly lake-filled maars and tuff cones dot the center of this NASA Landsat image (with N to the top) of the Kyatwa volcanic field. The Kyatwa vents, also known as the Ndale volcanic field, occupy the Western Rift Valley, east of the Ruwenzori Mountains halfway between Lake Edward and Lake Albert. The Kyatwa tuff cones are part of a group of Pleistocene-to-recent volcanic fields in western Uganda. NASA Landsat 7 image (worldwind.arc.nasa.gov)