The story of this sandstone formation in southeastern Utah"s Natural Bridges National Monument begins around 10 million years ago. That"s when tectonic shifts began slowly lifting what is now the 130,000-square-mile Colorado Plateau above the surrounding plains. In ensuing eons, the Colorado River"s many streams eroded the elevated land, threading it with deep canyons. When water broke through one canyon wall into another canyon, sometimes a natural bridge like this one remained above the breach.
Bridges to the past
More Desktop Wallpapers:
-
Beethoven s 250th
-
A star is borne by seaweed
-
Walk the line
-
Don’t get lost in there
-
Sanxiantai Dragon Bridge in Taitung, Taiwan
-
That s quite a schnoz, baby tapir
-
Celebrating the International Day of Forests
-
Roman theater of Cartagena, Spain
-
It s fair season
-
Tree of many colors
-
It s harvest time on World Food Day
-
Pretty in pink, and purple, and red…
-
Summer’s in home stretch
-
Hoisting a flag for seafarers
-
Best. Holiday. Ever.
-
A different kind of dive
-
Red skies at Ruby Beach
-
Fiesta at Siesta
-
The National Museum of the American Indian
-
Autumn in the cypress swamp