California enjoys one of the most diverse assemblages of land forms, vegetation types, and ecosystems in the world. There is more climatic and topographic variation in California than in any other region of comparable size in the United States. This variation has contributed to a remarkable diversity of natural features and ecosystems found at Point Reyes National Seashore, located within California.
Point Reyes National Seashore is blanketed with subtle natural features nestled over a variety of ecosystems. The overriding natural feature is the presence of the eastern San Andreas Fault that bisects the geologic peninsula from the rest of the California mainland. The remaining sides of the peninsula are intermittently edged by beaches, sea cliffs, and intertidal zones cascading into the Pacific Ocean. Encircled by this rich assemblage is a mosaic of ecosystems arranged by factors such as geologic foundation, climate, and exposure. While there are dozens of ways to classify and name the exact type of ecosystem, the broadest and closest category places Point Reyes National Seashore into a Mediterranean Ecosystem.