Park regulations here are similar to those in other lands administered by the National Park Service, and generally prohibit damaging the natural resources. Pets must be leashed and are not allowed on trails. In addition, RVs and other vehicles longer than 21 feet or wider than 8 feet are prohibited on the 24-mile (34km) stretch of Going-to-the-Sun Road between Avalanche Campground and Sun Point on St. Mary Lake. Snowmobiling is prohibited in the park.




