
Postcards From The Grander Canyon
Moffett Field CA (SPX) Sep 27, 2004 - If the martian canyon, Valles Marineris, were on Earth, it would stretch from New York to Los Angeles. It is the largest canyon in the solar system (more than 4,000 kilometers (2,500 miles) long with 5 to 10 kilometers (3 to 6 miles) relief from floors to tops of surrounding plateaus).













