National park, northwestern corner of California, U.S. It was established in 1968, expanded in 1978, and designated a World Heritage site in 1980.
It preserves virgin groves of ancient redwood trees, including the world's tallest, 367.8 ft (112.1 m) high. It also includes 40 mi (65 km) of scenic Pacific coastline. It covers an area of 172 sq mi (445 sq km), including land in three state parks.