The Sweetwater Preserve is a 703.26 acre preserve located in the eastern foothills of the Tucson Mountains of Southern Arizona, west of Tucson. Within approximately one-half mile of the Preserve are Saguaro National Park’s Tucson Mountain District, and a biological research preserve owned by the University of Arizona. Tucson Mountain Park is also located a short distance to the south. The lands that comprise the Sweetwater Preserve were acquired using monies from the 2004 Open Space Bond measure. The community strongly supported acquisition of this property and worked diligently to realize the establishment of this preserve. The natural-surface Sweetwater Trailhead is located at the southern end of Tortolita Road. The preserve is open dawn to dusk. Dogs are permitted on leash. Biking; equestrian; hiking.