San Quentin, California is a small unincorporated community located in Marin County, just north of San Francisco. It is best known for its infamous prison, San Quentin State Prison. This prison is the oldest prison in California and has housed some of the most notorious criminals in the state, including Charles Manson and Sirhan Sirhan. The prison has been the subject of several books and movies, and it is a popular tourist destination for those interested in the history of criminal justice.

The community of San Quentin is small and has only a handful of businesses and amenities. There are a few restaurants and bars, as well as an elementary school. San Quentin is also home to a marina, which is popular for fishing and boating. The area is also known for its beautiful views of the San Francisco Bay and the Golden Gate Bridge.

San Quentin is a unique community that has a lot of history and culture associated with it. The prison is a reminder of the darker side of criminal justice, but it is also a reminder of the progress that has been made in the criminal justice system in California over the years. San Quentin is a great place to visit for those who are interested in taking a look at the history of the state and its criminal justice system.