10 Must-Visit UNESCO World Heritage Sites in the United States

5. Glacier National Park

Glacier National Park, which forms part of the international Waterton-Glacier Peace Park with Canada, offers dramatic alpine scenery, glacial valleys, and clear mountain lakes. Scenic drives like Going-to-the-Sun Road show off sweeping vistas, but that route is seasonal and often subject to weather-related closures. Hiking ranges from short lakeside strolls to demanding ridge routes; pick trails that match your experience and check trailhead conditions. Wildlife watchers may spot mountain goats or marmots, but keep a safe distance and carry bear spray where recommended. The park’s cooperative designation with Canada highlights cross-border conservation and shared stewardship. For quieter experiences, explore side valleys and less trafficked trailheads or visit shoulder seasons when accessibility is still good but crowds are thinner. Always confirm seasonal closures and bring layered clothing for changing mountain conditions.