The Point Reyes National Seashore encompasses just over 71,000 acres. It was established in 1962 thanks to the work of Clem Miller, a United States congressman from Marin County. Mount Wittenberg is the tallest mountain at 1,407 feet in elevation. Point Reyes Hill is 1,336 feet and Mount Vision is 1,282 feet. The San Andreas Fault separates the Point Reyes peninsula from the rest of Marin County.
Coastal wildflowers, such as eelgrass and rock sea-spurrey, demonstrate remarkable adaptations to harsh environments, surviving in extreme conditions where many plants cannot thrive.