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Today's desert: Sonoran (Original Post) Ptah Apr 2013 OP
Pic I took last week in Zion National Park mokawanis Apr 2013 #1
I've been there. a la izquierda Apr 2013 #2
Beneath the Sonoran Desert aint_no_life_nowhere Apr 2013 #3

aint_no_life_nowhere

(21,925 posts)
3. Beneath the Sonoran Desert
Sat Apr 6, 2013, 02:18 PM
Apr 2013

in some limestone formations is Kartchner Caverns State Park located near the Mexican border in southern Arizona. The two-and-a-half-miles of cave were discovered in 1974 by two guys investigating a small crack at the bottom of a sinkhole.


http://www.arizona-leisure.com/kartchner-caverns.html







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