It’s National Trails Day.
Detail of the West Rim Trail, looking southwest, Zion National Park, Washington County, Utah, 1984, by Clayton B. Fraser, via Historic American Engineering Record, Library of Congress Prints and Photographs Division.
The trail opened in 1926 and was paved in 1929 with oil mixed with sand and rock. It was later repaved in concrete, most recently in 2007.
“Built of native stone and associated with the “National Park Service-Rustic” architectural style, the West Rim Trail possesses architectural integrity,” says the Record. “Rock used in the masonry switchback walls was quarried locally and shaped as little as possible to provide a rough appearance, yet stable construction.” You can read more here.