Sonora Desert at sunset, Saguaro National Park, Tucson, Arizona, USA, North America

afterglow american americas america arizona atmosphere atmospheric light atmospheric backlighting backlight shots backlight shot backlight barrenness barren cactaceae cactuses cactus carnegiea gigantea cereus clouds cloudy skies cloudy sky cloudy cloud columnar cacti columnar cactus columniform cactus deserts desert desolate dim distances distance distant views distant view dramatic droughts drought dryness dry dusky dusk evening atmospheres evening atmosphere evening light evening skies evening sky evening sun evenings evening landscapes landscape meager meagre mont mood mountain landscapes mountain landscape mountainous mountain scenery mountain silhouettes mountain silhouette mountains mountain mount mt mt np national parks national park natural preserves natural preserve nature photography nature reserves nature reserve nature nobody no one no people north america outline overviews overview panoramas panorama protected area red coloured red reserves reserve rock deserts rock desert saguaro national park saguaros saguaro sanctury scenery setting sun silhouettes silhouette skies sky with cloud sky sonoran desert sunsets sunset sun travel photography travels travel tucson twilight twilight united states of america united states us american us america usa us view of view on