Phoenix Mountains, Maricopa Co., Arizona - November 2012

Stephen Reynolds Shows Cross-Section of Phoenix Mountains (Photo provided by Brin Lindley)

Stephen Reynolds Describes Geology of Phoenix Mountains (Photo provided by Mike Conway)

Stephen Reynolds Describes Phyllitic Unit (Photo provided by Brin Lindley)

A Long Hike Back Down the Mountain (Photo provided by Mike Conway)

Looking Southwest Toward toward Downtown Phoenix (Photo provided by Mike Conway)

South Mountain, Maricopia Co., Arizona - November 2012

Stephen Reynolds Shows Cross-Section of South Mountain (Photo provided by Brin Lindley)