Rockville is a small town in the canyon of the Virgin River, 4.7 miles west of Zion’s south entrance. It was founded in 1862 and has kept its original town plan. The town describes itself as a rural, residential and agricultural community, and its 2020 general plan puts 90 to 95 percent of the land inside the town limits in agriculture or open space.
The Rockville Bridge, built in 1924 for the National Park Service, carries Bridge Road across the Virgin River. It is the only surviving Parker through-truss bridge still used by vehicles in Utah, and it has been on the National Register of Historic Places since 1995. Today it leads to farms on the south side, trailheads for Eagle Crags, Gooseberry Mesa and Smithsonian Butte, and the old townsite of Grafton.