User:HoorayForSodomy/Grand Canyon

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The Grand Canyon is a canyon in Arizona cut by the Colorado River. As measured by both length and by depth relative to surrounding land, it is the third largest canyon in the world. The Grand Canyon is geologically significant in part because of the excellent preservation of the geologic column; it is among the most well-preserved in the world.

The Geologic Column[edit]

Formation of the Grand Canyon[edit]