"Tumamoc Hill (O'odham: Cemamag\u012D Do\u02BCag) is a butte located immediately west of \"A\" Mountain and downtown Tucson, Arizona. It is home to many radio, television, and public safety transmitters. The University of Arizona (UA) owns a 340-acre (1.4 km2) preserve and leases another 509 acres (2.06 km2) as a research and education facility. The Steward Observatory maintains a small astronomical observatory with a 20-inch (510 mm) telescope on the hill."@en . . . "Tumamoc Hill"@en . . . . . "947.318"^^ .