Highlight • Lake
Cycling
5.0
(2)
Hiking
5.0
(2)
Saint Mary Lake is a prominent freshwater lake nestled on the eastern side of Glacier National Park in Montana, USA. As the second-largest lake within the park, it sits at an elevation of 1,367 meters (4,484 feet) amidst the rugged peaks of the Lewis Range. This glacial lake is renowned for its striking turquoise waters, fed by glacial melt, and is famously paralleled by the scenic Going-to-the-Sun Road along its northern shore. A notable landmark is the tiny Wild Goose…
This Highlight is in a protected area
Please check local regulations for:
Tips
November 5, 2023
Cycling
Nearby routes
Best routes near Saint Mary Lake
Details
Informations
Elevation 1,400 m
Weather
Powered by Foreca
Today
Friday 13 March
-4°C
-8°C
97 %
Additional weather tips
Max wind speed: 4.0 km/h
Glacier National Park has strict regulations regarding pets on trails to protect wildlife and natural resources. Generally, dogs are not permitted on hiking trails or in the backcountry around Saint Mary Lake. They are typically allowed in developed areas, along paved roads, in campgrounds, and in picnic areas, provided they are on a leash no longer than 6 feet (1.8 meters). Always check the current park regulations before your visit.
For families, the short path to Baring Falls is a great option, offering a relatively easy walk to a beautiful waterfall. The Sun Point Nature Trail also provides accessible views and a chance to learn about the area's ecology. These trails are generally less strenuous and offer rewarding scenery for all ages.
Parking is available at various pull-offs and designated lots along the Going-to-the-Sun Road, which parallels the lake. Popular trailheads like Sun Point, Baring Falls, and the St. Mary Falls/Virginia Falls trail often have dedicated parking areas. During peak season, these lots fill up quickly, so arriving early in the morning is highly recommended. The park's shuttle system also provides convenient access to many trailheads, reducing the need to find parking.
During winter, Saint Mary Lake often freezes over with ice up to 4 feet (1.2 meters) thick, and the surrounding landscape is blanketed in snow. The Going-to-the-Sun Road is closed beyond the Lake McDonald Lodge on the west side and the St. Mary entrance on the east side, limiting vehicle access. However, the area becomes a serene destination for cross-country skiing and snowshoeing, offering a unique and quiet perspective of the majestic scenery.
Yes, scenic boat cruises are typically operated on Saint Mary Lake from June to September. These tours provide unique perspectives of landmarks like Wild Goose Island and Sexton Glacier, offering a relaxing way to experience the lake's beauty and learn about its history and geology. The historic "Little Chief" boat, built in 1926, is known for offering tours here.
The area around Saint Mary Lake is rich in wildlife. Hikers should keep their eyes peeled for elk, mule deer, and occasionally grizzly and black bears. The lake's cold waters are also home to various species of trout, including westslope cutthroat trout, lake whitefish, and rainbow trout. Always maintain a safe distance from wildlife and carry bear spray.
Accommodation and dining options are available near the Saint Mary Lake area. Rising Sun Motor Inn and St. Mary Village Lodging are two prominent options offering amenities such as lodging, restaurants, and general stores. These facilities provide convenient bases for exploring the eastern side of Glacier National Park.
The Glacier National Park shuttle system provides a convenient way to travel along the Going-to-the-Sun Road, including stops at Saint Mary Lake and Logan Pass. Shuttles typically run from late June/early July through early September. Visitors can park at designated shuttle stops, such as the St. Mary Visitor Center, and ride the shuttle to various trailheads and viewpoints. This helps reduce traffic congestion and parking challenges during peak season.
The striking turquoise hue of Saint Mary Lake's water is due to suspended glacial silt, often referred to as "rock flour." This fine sediment, ground by glaciers, reflects sunlight in a way that gives the water its vibrant color. The waters are notably cold, rarely exceeding 50°F (10°C), even in summer, due to its glacial origins and high elevation.
While a general entrance fee or pass is required to enter Glacier National Park, specific permits may be needed for certain activities. For instance, backcountry camping requires a permit, and fishing may require a Montana fishing license. Always check the official Glacier National Park website for the most up-to-date information on permits and regulations before planning your activities.
For experienced hikers seeking a challenge, trails like the route to Virginia Falls (often combined with St. Mary Falls), the Gunsight Lake Trail, and the Piegan Pass Trail offer more strenuous options. These trails typically involve significant elevation gain and longer distances, providing rewarding views of the park's rugged interior.
While swimming is not prohibited, the waters of Saint Mary Lake are extremely cold, rarely exceeding 50°F (10°C). This makes it unsuitable for casual swimming for most people. If you do decide to enter the water, be prepared for the frigid temperatures and exercise extreme caution.