National Geographic Weekend Explorer 3D gives you the power of our popular TOPO! Software focused on recreation regions near major metropolitan areas. This one covers all of the Tucson metro area, including: Marana, Oracle, Green Valley, Nogales, Safford, Willcox, Sierra Vista, Douglas, Mt. Lemmon, Santa Catalina Mountains, Pusch Ridge Wilderness, Ironwood National Monument, Santa Rita Mountains, Mt. Wrightson Wilderness, Rincon Mountains, Chiricahua Mountains, Buenos Aires N.W.R., and more.