In 1986, Mayo Clinic formally united with Saint Marys Hospital and Rochester Methodist Hospital. That same year, Mayo Clinic expanded to Florida partly because of a donation of 400 acres of land in Jacksonville from the Davis family. This was followed by expansion to Scottsdale, Arizona, in 1987; the Phoenix, Arizona, campus opened in 1998. In 1992, Mayo Clinic Health System began as a network of community-based medical services in Minnesota, Iowa, and Wisconsin. In 2011, Mayo Clinic launched the Mayo Clinic Care Network, a collection of facilities with access to Mayo Clinic protocols and experts.