to annual rankings published by U.S. News & World Report. The teaching hospitals affiliated with each school are also highly regarded – the UCSF Medical Center was ranked the number one hospital in California and number 5 in the country by U.S. News & World Reports 2017 Honor Roll for Best Hospitals in the United States. UC also has a sixth medical school—UC Riverside School of Medicine, the only one in the UC system without its own hospital. In the latter half of the 20th century, the UC hospitals became the cores of full-fledged regional health systems; they were gradually supplemented by many outpatient clinics, offices, and institutes. Three UC hospitals are actually county hospitals that were sold to UC, which means that UC currently plays a major role in providing healthcare to the indigent. The medical hospitals operated by UC Irvine (acquired in 1976), UC Davis (acquired in 1978), and UC San Diego (acquired in 1984) each began as the respective county hospitals of Orange County, Sacramento County, and San Diego County. As of 2021, UC medical centers handle each year about 8.1 million outpatient visits, 349,074 emergency room visits, and roughly 1.1 million inpatient days. Facilities outside of California UC operates several other miscellaneous sites to support faculty, students, and researchers away from its general campuses: The UC Office of the President's Education Abroad Program currently operates one mini-campus which supports UC students, faculty, and alumni overseas: Casa de California in Mexico City. EAP also briefly operated California House in London during the early-to-mid 2000s. UC Washington Center in Washington, D.C. with a dormitory for students interning with the federal government. UC Davis's UC Center Sacramento supports students interning with the California government. UC Berkeley operates the Richard B. Gump South Pacific Research Station in Mo'orea, French Polynesia on land donated in 1981 by the heir to the founder of the Gump's home furnishings store. Hospitality facilities Unlike other land-grant institutions (e.g., Cornell) UC does not provide a hospitality management program, but it does provide general hospitality at some locations: UC Berkeley's Cal Alumni Association operates travel excursions for alumni (and their families) under its "Cal Discoveries Travel" brand (formerly BearTreks); many of the tour guides are Berkeley professors. CAA also operates the oldest and largest alumni association-run family camp in the world, the Lair of the Golden Bear. Located at an altitude of 5600 feet in Pinecrest,