The park and recreation areas are always open, but access is limited by snow in winter. Note that State Route 20 (North Cascades Scenic Highway), the major access to Ross Lake National Recreation Area, is closed east of Ross Dam (mile 134)from approximately mid-November to mid-April. Exact opening and closing dates depend on weather, snow depths, and avalanche hazards. For a complete listing of current road closures, as well as campground and trail conditions, please check the Current Park Conditions page.
