Sierra Vista is at the center of the Sky Island Archipelago – a collection of mountain ranges that rise high above the deserts and grasslands. They provide critical habitat to an incredible array of flora and fauna that give this region the reputation of one of the most biologically diverse areas in the country. In this presentation we will soar far above the Sky Islands to look at the whole region that stretches into Mexico, We will look at the canyons of the Huachuca Mountains for evidence of a violent past and will dig deep into the earth to look at the ways these ranges have formed over time.