Cabeza Prieta National Wildlife Refuge, AZ. / Ocotillos, Fouquieria splendens, with green, crimson and golden coloring at dawn in Pinacate Lava flow. 112001H8

Cabeza Prieta National Wildlife Refuge, AZ. / The starry night sky, with stars rotating around the North Star, is the backdrop for a lone Saguaro cactus, Carnegiea gigantea, near Tule Well, 42002P

Cabeza Prieta National Wildlife Refuge, AZ./ Saguaro cactus, Carnegiea gigantea, with new arm emerging from it's spinney trunk . 103V1