It was during the 1860s to the 1880s when San Francisco began to transform into a major city, starting with massive expansion in all directions, creating new neighborhoods such as the Western Addition, the Haight-Ashbury, Eureka Valley, the Mission District, culminating in the construction of Golden Gate Park in 1887. In 1864 Hugh H. Toland, a South Carolina surgeon who found great success and wealth after moving to San Francisco, founded the Toland Medical College, which became one of three affiliated colleges, which later developed into the University of California, San Francisco. Initially, the affiliated colleges were located at different sites around San Francisco, but near the end of the 19th century interest in bringing them together grew. To make this possible, San Francisco Mayor Adolph Sutro donated 13 acres in Parnassus Heights at the base of Mount Parnassus (now known as Mount Sutro). The new site, overlooking Golden Gate Park, opened in the fall of 1898, with the construction of the new affiliated colleges buildings.