Overviews of each region of the state, more detailed sections on habitats such as mountain ranges, deserts, and canyons, and very specific information on individual locations - you'll find out which side of a gulch gets the morning sunlight and how far down a creek the swallowtails puddle.

Other chapters discuss where to go and what to look for in each month of the year (in February, willow ragwort flowers near Sonoita Creek attract Arizona Dusky-Wings), provide brief descriptions of many species of butterflies and skippers, and review the state's butterfly gardens.