Muir Woods National Monument

Muir Woods National Monument occupies Redwood Canyon at the foot of Mount Tamalpais in Marin County, California. The nominated area covers 428 acres and includes the old-growth redwood forest, Bohemian and Cathedral Groves, a historic trail system along Redwood Creek, memorials, and buildings, structures and objects built before World War II in a rustic style. William Kent and Elizabeth Thacher Kent gave the land to the United States in 1907, and President Theodore Roosevelt proclaimed the monument on January 8, 1908. Additional Kent gifts expanded it in 1921 and 1935. The period of significance runs from 1907 to 1947, covering the first decades of federal ownership, when the site was adapted to rising visitation under a consistent rustic design approach and became known as a symbol of American conservation. It ends with the 1947 installation of a memorial to President Franklin D. Roosevelt. Later additions and some alterations are outside the nominated area or have affected details but not overall character.