Going-to-the-Sun Road Hours & Seasons: Going-to-the-Sun Road is seasonal and is open only during the summer months. However, Glacier National Park stays open year-round, but only a small portion of the Going-to-the-Sun Road is plowed and remains open during the winter months. 

Going-to-the-Sun Road Driving Directions: The Going-to-the-Sun Road traverses the Glacier National Park from the west entrance/Apgar Visitor Center to the east/Saint Mary Entrance. You could drive from east to west or west to east based on where you enter the park. The Going-to-the-Sun Road is a paved, 50 miles two-lane highway and takes about 2 hours if driven non-stop, but if you stop at all vista points, hike a couple of easy trails, and stop for lunch, it might take 4-5 hours. 

Upon completing the drive, you could either take the Going-to-the-Sun Road back to your starting point or exit the park and join the highway outside the park, Highway 2 on the wast and Highway 89 on the east, to get to your destination or other sections of the park.

• West Entrance / Apgar Visitor Center Address: GPS Coordinates: Lat: 48.5231, Long: -113.9885.
• East Entrace / Saint Mary Entrance Address: GPS Coordinates: Lat: 48.7617, Long: -113.4350.

Driving Rules & Restrictions: Due to the nature of the road and safety reasons, there’re a few strictly imposed driving regulations in Glacier National Park.

• Speed Limit: 45 miles per hour on lower elevations and 25 miles per hour on higher elevations.
• Vehicle Size: Due to the several switchbacks and a few hairpin turns, there’re strict policies around the vehicles’ size – Not longer than 21 feet, not wider than 8 feet, and not taller than 10 feet.
• Parking: Parking is allowed only at designated pullouts and parking lots.

Park Shuttle Services: There’re several vista points, trailheads, and parking lots along the Going-to-the-Sun Road. However, during the peak season, the park gets quite crowded, and it might be challenging to find parking near the popular spots along the Going-to-the-Sun Road. So, the park offers a free shuttle service during the summer months, starting at the Apgar Visitor Center on the west side and St. Mary Visitor Center on the east side of the park, taking visitors to all major trailheads and viewing points in the park.

Going-to-the-Sun Road Guided Tours: There’re a couple of tour companies, including Sun Tours and Glacier National Park Lodges Red Bus Tours, which offer guided bus tours of Going-to-the-Sun Road in Glacier National Park. The bus tours are well-narrated, well-paced, and stops at all major viewing points along the Going-to-the-Sun Road.

Going-to-the-Sun Road Services & Amenities: You will find dining and lodging options along the Going-to-the-Sun Road, but there’re no gas stations along the road.

• Gas Stations In Glacier National Park: West Glacier Gas Station located near the west entrance/Apgar Visitor Center, and St. Mary Grocery Store & Gas station near the west entrance/Saint Mary Entrance.
• Food & Lodging: There’re quite a few lodging and dining options along the Going-to-the-Sun Road at Apgar Village, Lake McDonald Lodge, and Rising Sun Motor Inn. However, you won’t find any service along the 33 miles stretch from Lake McDonald Lodge to Rising Sun Motor Inn.
• Visitor Centers: There’re three visitor centers along the Going-to-the-Sun Road, including Apgar Visitor Center near the west entrance, Logan Pass Visitor Center located in the center of the park, and St. Mary Visitor Center near the east entrance. You will find basic amenities like water fountains and restrooms at all the visitor centers in Glacier National Park.

You can find more details about Glacier National Park, including hiking trails, camping, lodging, and dining options, in my Ultimate Guide To Glacier National Park.