Lake Forest incorporated as a city on December 20, 1991. Prior to incorporation, the community had been known as El Toro. Following a vote in 2000, Lake Forest expanded its city limits to include the master-planned developments of Foothill Ranch and Portola Hills. Lake Forest has two lakes from which the city gets its name. The lakes are man-made, and condominiums and custom homes ranging from large to small line their shores. The “forest” for which the city is also named consists mostly of Eucalyptus trees. It is also man-made, and was created in the first decade of the 1900s when a local landowner, Dwight Whiting, planted 400 acres of Eucalyptus groves as part of a lumber operation intended to draw development to the area. In the late 1960s, the Occidental Petroleum company developed a residential community in and around the Eucalyptus groves. As of the last census, the population of Lake Forest was 77,264 residents.