The Saguaro forest along the Wren-Manville Trail in Saguaro National Park |
View of the Tucson Mountains from Signal Hill along the Wren-Manville Trail in Saguaro National Park |
Red Tailed Hawk along the Bajada Loop Drive in Saguaro National Park |
View along the Bajada Loop Drive in Saguaro National Park |
View of the Catalina Mountains from along the Bajada Loop Drive in Saguaro National Park |
Petroglyphs at Signal Hill along the Wren-Manville Trail in Saguaro National Park |
Giant Saguaro along the Wren-Manville Trail in Saguaro National Park |
Giant Saguaro with many arms along the Wren-Manville Trail in Saguaro National Park |
Christmas Tree Cholla cactus along the Wren-Manville Trail in Saguaro National Park |
Purple Cane Cholla cactus fruit along the Wren-Manville Trail in Saguaro National Park |
Teddy Bear Cholla cactus and a bird on a Saguaro along the Wren-Manville Trail in Saguaro National Park |
American Kestrel (hawk) on top of a Saguaro along the Wren-Manville Trail in Saguaro National Park |
American Kestrel (hawk) on top of a Saguaro along the Wren-Manville Trail in Saguaro National Park |
Saguaros with an Ocotillo cactus in the foreground along the Wren-Manville Trail in Saguaro National Park |
Hawks nest in the arms of a Saguaro along the Wren-Manville Trail in Saguaro National Park |
Large Saguaro along the Wren-Manville Trail in Saguaro National Park |
Teddy Bear Cholla cactus and “minefield” of offspring along the Wren-Manville Trail in Saguaro National Park |
Saguaro with the Tucson Mountains in the background along the Wren-Manville Trail in Saguaro National Park |
Buckhorn Cholla cactus fruit along the Wren-Manville Trail in Saguaro National Park |
Giant Saguaro along the Wren-Manville Trail in Saguaro National Park |
Close-up of the tip of a Saguaro arm along the Wren-Manville Trail in Saguaro National Park |
Desert Phainopeplas along the Wren-Manville Trail in Saguaro National Park |
Shadow of a Saguaro on the desert floor along the Wren-Manville Trail in Saguaro National Park |
Curved Bill Thrasher along the Wren-Manville Trail in Saguaro National Park |
Multiple arms in an odd formation on a Saguaro along the Wren-Manville Trail in Saguaro National Park |
Large ant hill along the Wren-Manville Trail in Saguaro National Park |
Ants working an ant hill along the Wren-Manville Trail in Saguaro National Park |
Squirrel hiding on an old tree along the Wren-Manville Trail in Saguaro National Park |
Buckhorn Cholla cactus fruit along the Wren-Manville Trail in Saguaro National Park |
Fishhook Barrel cactus fruit along the Wren-Manville Trail in Saguaro National Park |
The desert along the Wild Dog Trail in Saguaro National Park |
Overcast skies silhouette a Saguaro along the Wild Dog Trail in Saguaro National Park |
Silhouette of Saguaros along the Wild Dog Trail in Saguaro National Park |
Saguaros silhouetted against an overcast sky along the Wild Dog Trail in Saguaro National Park |
The desert along the Wild Dog Trail in Saguaro National Park |
Cactus along the Desert Discovery Nature Trail in Saguaro National Park |
Pencil Cholla cactus along Desert Discovery Nature Trail in Saguaro National Park |
Gilded Flicker Woodpecker building a home in a Saguaro cactus in Saguaro National Park |
Prickly Pear and Cholla cactus along the Sendero Esperanza Trail in Saguaro National Park |
Yucca plant along the Sendero Esperanza Trail in Saguaro National Park |
Buckhorn Cholla cactus along the Sendero Esperanza Trail in Saguaro National Park |
Hedgehog cactus along the Sendero Esperanza Trail in Saguaro National Park |
Desert Mourning Dove in Saguaro National Park |
Lichens on a rock along the Sendero Esperanza Trail in Saguaro National Park |
Plant life along the Sendero Esperanza Trail in Saguaro National Park |
Large Yucca plant along the Sendero Esperanza Trail in Saguaro National Park |
Hollowed out Saguaro along the Sendero Esperanza Trail in Saguaro National Park |
The sun eclipsed by a Saguaro along the King Canyon Trail in Saguaro National Park |
Small Hedgehog cactus growing from a rock along the King Canyon Trail in Saguaro National Park |
Petroglyphs on a cliff along the King Canyon Trail in Saguaro National Park |
Saguaro forest in the Tucson Mountains along the King Canyon Trail in Saguaro National Park |
Gould Mine abandoned along the King Canyon Trail in Saguaro National Park |
Entrance to the Gould Mine along the King Canyon Trail in Saguaro National Park |
Gould Mine from below along the King Canyon Trail in Saguaro National Park |
Saguaros along the King Canyon Trail in Saguaro National Park |