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Navajo Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Navajo Sandstone
RTJurassic
 Upper Triassic
 New Mexico
 Utah
 Colorado
 Arizona
 Glen Canyon Group
 Nugget Sandstone
SNIn Glen Canyon Group. Upper Triassic(?) and Jurassic. N Arizona, W Colorado, NW New Mexico, and SE Utah.