Wupatki National Monument
Outcrops of basalt crop out around the Citadel Ruin. Masonry construction of the Citadel includes basalt (black), sandstone from the Moenkopi Formation (red), and limestone from the Kaibab Formation (white).
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The URL is: https://gotbooks.miracosta.edu/gonp/wupa/html/w1730.htm
Last modified: 1/12/2011