Public Domain Photos: Tunnel Log, Crescent Meadow Road, Sequoia National Park in California
The Tunnel Log is a tunnel cut through a fallen giant sequoia tree in Sequoia National Park in California so that visitors can drive their cars through it. The tunnel is 8 feet (2.4 meters) tall and 17 feet (5.2 meters) wide. In December 1937, a sequoia tree, 275 feet (83.8 meters) tall and 21 feet (6.4 meters) in diameter, fell across the Crescent Meadow Road due to natural causes. In the following summer, a Civilian Conservation Corps crew cut a tunnel through the tree.