Volcanic Cones | National Geographic Society
Volcanic Cones. A volcanic cone is a hillshaped landform that forms around a volcano. Volcanic cones can be steep or gently sloping depending on the type of eruption that forms them. The steepest cones form around cinder cone volcanos. Cinder cones form from ash and magma cinderspartlyburned, solid pieces of magma, that fall to the ground ...