Established as a national park: Aug. 9, 1916.
Area: 106,372 acres.
Visitors: 376,695 in 2001.
Location: 50 miles east of Red Bluff, Calif.
Flora and fauna: Shrubs, herbs, grasses and trees-mostly conifers-are taking hold in lava-flow areas. Wildlife includes a variety of rodents, bats, black bears, foxes, mountain lions, reptiles and several kinds of trout.
Entrance fee: $10 per vehicle for seven consecutive days.