Valleys

In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.

[http://en.wikipedia.org/wiki/Valley]

AMERICA - MONUMENT VALLEY

[http://www.westkueste-usa.de/2007/images/Monument_Valley_058.jpg]

AUSTRALIA - PURNULULU NATIONAL PARK (MITCHELL FALLS)

[http://labyrinth.net.au/~tdp/images/mitchellfalls.jpg]