Pinacate Volcano field#

Image courtesy of USGS., under PD
American astronauts used this area in 1965-70 to train for lunar excursions; surrounding the region are the vast sand dune fields of Gran Desierto de Altar.
American astronauts used this area in 1965-70 to train for lunar excursions; surrounding the region are the vast sand dune fields of Gran Desierto de Altar.