The Golden Gate area is in the northern section of San Francisco. It is made up of two National Historic Landmarks — The Presidio and Fort Mason — as well as several upscale neighborhoods including Pacific Heights, Cow Hollow, and the Marina District. It has some of the most beautiful scenery and intact natural environments in the city. It is roughly bounded by the San Francisco Bay to the north and west, Lake St and California St to the south, and Van Ness Ave to the east. The Golden Gate Bridge connects this district with Marin County across the Bay to the north.