Reserva Provincial La Payunia, also known as Payún or Payén, is a nature preserve located in the southern part of Argentina's Mendoza Province. Spanning 1,737 square miles (4,500 sq. km), it is home to more than 70 animal species and a number of volcanic cones. Ash from these volcanoes forms a black terrain known as Pampas Negras, which can be seen spreading its way across this Overview.
Source imagery: DigitalGlobe