Ahreemania - Worlds & Races - Mars
Valles Marineris, the Grand Canyon of Mars
Map showing some features of Valles Marineris. Completely dwarfing the Grand Canyon in Arizona, this canyon stretches for 2,500 miles
(4,000 km) and at some places is 125 miles (200 km) across and 2 miles (3 km) deep.
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