1348-4580 - Desert Erg Iguidi, Algeria, True Colour Satellite Image. True colour satellite image of Erg Iguidi, a sand desert between Algeria and Mauritania. The 250m wide dunes lay in the South on a sand plain, and in the North on a blakek sandstone area. The light blue areas are calcareous and salt crusts left out from the evaporation of the oueds' water. Image taken on 29 March 1987 using LANDSAT data.
1348-4535 - Tin Bider Meteor Impact Crater, Algeria, True Colour Satellite Image. True colour satellite image of Tin Bider impact structure, Algeria (age : 70 million years ; diameter : 6 km). Image taken on 19 February 1988 using LANDSAT data.
1348-4564 - Sahara Desert, Africa, True Colour Satellite Image. Sahara desert, true colour satellite image. The Sahara is the world's largest hot desert, made of sand and volcanic mountains. Composite image using data from LANDSAT 5 & 7 satellites.