Going-to-the-Sun Road is a scenic highway located in Glacier National Park in Montana. Stretching 50 miles, it connects the park's west and east sides, offering breathtaking views of mountains, valleys, and lakes. The road was completed in 1933 and is a marvel of engineering, featuring steep cliffs and narrow sections. The route is open seasonally, typically from late June to mid-September, due to snow. Along the way, visitors can access various hiking trails and viewpoints, making it a popular destination for tourists and nature enthusiasts. The road is also a designated National Historic Landmark.