Navarro River

The Navarro River is a 28.3-mile-long (45.5 km) river in Mendocino County, California. It flows northwest through the Coastal Range to the Pacific Ocean. Encompassing 315 square miles (820 km2), its watershed includes the Anderson Valley, a well-known wine-growing region in Mendocino County. 

The main stem of the Navarro River begins less than 1 mile (2 km) south of the town of Philo at the confluence of Rancheria Creek and Anderson Creek. Upstream on Rancheria Creek there are 26 miles (42 km) of whitewater suitable for rafting and kayaking. Near Philo the river runs through Hendy Woods State Park, a state park of more than 800 acres (320 ha), featuring two virgin redwood stands.