These valleys are part of the vast Valles Marineris canyon system that dominate much of Mars. Source: Viking Orbiter 1 | August 5, 1976
Image by Michael Benson
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Mailing Address PO Box 37012 MRC 941 Washington, DC 20013-7012 202.633.3168 (tel) 202.633.5347 (fax)
Delivery Address 470 L'Enfant Plaza, SW Suite 7103 Washington, DC 20024
