Llagas-Uvas is an unincorporated census county division (CCD) located on the eastern side of the Santa Cruz Mountains in southwest Santa Clara County, California. The area covers approximately 102 sqmi, much of it open space, and contains the Uvas and Chesbro reservoirs, as well as the Calero, Uvas Canyon, Rancho Cañada del Oro, and Mount Madonna county parks.