Vehicles longer than 24 feet (7.3 m) are not advised between the Foothills Visitor Center and Potwisha Campground in Sequoia National Park. Vehicles longer than 22 feet (6.7 m) are not advised on the stretch of road between Potwisha Campground and the Giant Forest Museum in Sequoia National Park. Highway 180, the northern entrance to these parks, is the preferred route for these longer vehicles. This limit applies to tow trucks, as well.