The neighborhood is bounded on the northwest and north by the Los Angeles city line, on the east by a fireroad through Griffith Park, continuing on Western Avenue, on the south by Franklin Avenue and on the west by an irregular line that includes Outpost Drive.[5][6] Bedrock of the Hills is a complex association of granitic and metamorphic rock plus interbedded sandstone and shale on which brown loamy soil, often shallow and with abundant stones, has developed.In 2000, Mexico (7.9%) and the United Kingdom (7.8%) were the most common places of birth for the 22.8% of the residents who were born abroad, which was considered a low percentage of foreign-born when compared with the city or county as a whole.The neighborhood includes:[5] In 2000, 54.8% of residents aged 25 and older held a four-year degree, considered high when compared with the city and the county as a whole.[6] There are five secondary or elementary schools within the neighborhood's boundaries:[6] The American Film Institute is at 2021 North Western Avenue.