Road Sign in Sonora Desert, Tucson, Arizona, USA, North America

american americas america arizona attentions attention barrenness barren botany caution deserts desert desolate droughts drought dryness dry information letterings lettering meager meagre nature photography nature nobody no one no people north america pictograms pictogram plants plant rock deserts rock desert signs sign sonoran desert street signs street sign symbolic image symbolic pictures symbolic picture symbolic tucson united states of america united states us american us america usa us vegetations vegetation warning label warning notice warning signs warning sign warnings warning