Roadside geology: Wupatki and Sunset Crater Volcano National Monuments (Down-to-earth / Arizona Geological Survey)

Roadside Geology:Wupatki and Sunset Crater Volcano National Monuments (DTE-15) by Sarah L. Hanson introduces the loop road that connects Wupatki and Sunset Crater Volcano National Monuments in this amazing 32 page full color collection.