Rancho San Pedro, Santa Margarita y Las Gallinas

Big Rock Ridge is a ridge near Novato, California, and the 2nd tallest point in Marin County. The ridge is 5 miles long, and runs from the northwest to the east, dividing Novato's Ignacio Valley and San Rafael's Lucas Valley, and separating Novato from central and southern Marin County. Big Rock Ridge is named after the rock at the base of Big Rock Trail.

Rancho Cañada de Herrera was a 6,658-acre (26.94 km2) Mexican land grant in present day Marin County, California given in 1839 by Governor pro tem Manuel Jimeno to Domingo Sais (also spelled Saens or Saez). The grant encompassed present day Fairfax, Sleepy Hollow and a part of San Anselmo.

San Domenico School is the oldest independent, private, coed day and boarding school in California and the closest coed boarding school to San Francisco, California. The school currently enrolls 680 boys and girls in Grades Kindergarten through Twelfth Grade. It is a member of the National Association of Independent Schools. The mascot is a Panther. The school colors are blue and green.

Sleepy Hollow is a census-designated place in Marin County, California, United States. It is located 7 miles (11 km) south of downtown Novato at an elevation of 177 feet (54 m). Its population as of the 2020 census was 2,401.

Las Gallinas Valley or Gallinas Valley is a geographical valley landform of Marin County, California, United States formed by Miller Creek. It is also the name of a major planning area of Marin County.

Lucas Valley-Marinwood is a census-designated place (CDP) in Marin County, California, United States. It includes the neighborhoods of Lucas Valley and Marinwood. As of the 2020 census, the population was 6,259.

Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County (across the Golden Gate), and the northeast corner of San Mateo County in the U.S. state of California. Area code 415 was one of the eighty-six original North American area codes established in 1947, but modified in geographic configuration later. Area code 628 was assigned in 2015 to form an overlay in that numbering plan area in mitigation of central office prefix exhaustion.

The Bothin Convalescent Hospital was established in 1910 as a place for women and children to convalesce after illness or surgery. The hospital was built by Henry Bothin on a thousand-acre parcel of land he had purchased in 1903 along the Northwestern Pacific Railroad near Fairfax, California. Later, a tuberculosis sanitarium was constructed on the same property. A railroad station named Bothin served the hospitals. When Bothin died in 1923, he left behind a charitable foundation to support these facilities and other non-profit organizations. The convalescent home closed in 1940 and the tuberculosis hospital operated until the 1950s.In 1948 the Marin Girl Scouts Council began using part of the property for summer activities. Scouting activity grew each year until 1959 when the entire property was leased to the Girl Scouts. Known as Camp Bothin, the site is officially named the Henry E. Bothin Youth Camp. There have been numerous claims of ghost citings at the camp, mostly relating to its prior use as a tuberculosis sanitarium

The Marin School of Arts and Technology (MSAT) was a small charter school in Marin County, California, that existed between 2003 and 2007. Located in the College of Marin's Indian Valley campus in Novato, California, it was operated by Envision Schools, an organization funded by the Bill and Melinda Gates Foundation. Conceived as a "small high school," the school's focus was on teaching a rigorous, project-based curriculum, using art and technology as tools for learning.

Skywalker Ranch is a movie ranch and the workplace of film director, writer and producer George Lucas located in a secluded area near Nicasio, California, in Marin County. The ranch is located on Lucas Valley Road, named after an early-20th-century landowner in the area of no relation to George Lucas. The ranch is not open to the public.

Spirit Rock Meditation Center, commonly called Spirit Rock, is a meditation center in Woodacre, California. It focuses on the teachings of the Buddha as presented in the vipassana, or Insight Meditation, tradition. It was founded in 1985 as Insight Meditation West, and is visited by an estimated 40,000 people a year. The San Francisco Chronicle has called it one of "the Bay Area's best-known centers for Buddhist meditation."

Manor is a former unincorporated community now incorporated in Fairfax in Marin County, California. It lies at an elevation of 157 feet (48 m). The community is in ZIP code 94930 and area codes 415 and 628.