Environment Planet Earth 11 Unique Facts About Glacier National Park in Montana Grizzly bears and mountain goats are at home in biodiverse Glacier National Park. By Ryan Slattery Ryan Slattery Twitter Writer Northeastern University Ryan Slattery is a writer and editor based in Las Vegas. His work has appeared in the Boston Globe, High Country News, Nevada Magazine, and the Washington Post, among others. Learn about our editorial process Published October 27, 2021 Jordan Siemens / Getty Images Share Twitter Pinterest Email Planet Earth Outdoors Weather Conservation Straddling the Continental Divide from its post in northern Montana, Glacier National Park is one of the nation’s most awe-inspiring parks. Majestic mountain ranges with sharp jagged peaks give way to glacier-carved valleys and lush meadows, while each winter’s deep snow melts and tumbles down waterfalls feeding the area’s more than 700 turquoise lakes. Sharing a boundary with Canada’s Waterton Lakes National Park, the combined preserve is recognized as Waterton-Glacier International Peace Park, and allows for grizzly and black bears, bighorn sheep, and other large animals to freely cross between countries. Explore this geological gem with these intriguing facts about the park. Waterton-Glacier Is a UNESCO Biosphere Reserve Not only is Waterton-Glacier an International Peace Park, it’s also a UNESCO World Heritage Site and Biosphere Reserve. The combined park is recognized as such for its biodiversity and for being a “pristine laboratory for scientific studies of global climate change, snowpack, natural wildfire processes, species migration and population estimates, water, and air quality.” The Glaciers Are Retreating Heath Korvola / Getty Images Unfortunately, due to climate change, all of the park’s glaciers are retreating and could disappear by the end of the century, according to the U.S. Geological Survey. The glaciers that carved this magnificent U-shaped valley date to the Pleistocene Epoch, a period of time 12,000 years ago when ice covered much of the Northern Hemisphere. The smaller glaciers seen today are roughly 6,500-years-old. Since about 1850, data shows that of the 80 glaciers identified then, only 32 remain. The Park’s Water Flows in Three Directions How’s this for an oddity? One of nature’s rarest phenomenons occurs in Glacier at a place called Triple Divide Peak. Here, any water that falls on the summit flows to either the Pacific or Atlantic oceans or into the Hudson Bay (a tributary to the Arctic ocean). This means that depending on which slope of the Triple Divide rain falls or snow melts, it travels in one of three directions. Going-to-the-Sun Road is a Majestic Marvel George Frey / Getty Images This is one of the country’s most breathtaking stretches of pavement. Around every corner of this winding, cliff-hugging road is another "wow" moment. Completed in 1932, the Going-to-the-Sun Road is a wonderfully planned road (it’s on the National Register of Historic Places and was named a National Historic Civil Engineering Landmark). The 50-mile, paved two-lane highway skirts the shore of the park’s two largest lakes as it crosses the Continental Divide at Logan Pass connecting the east and west sides of the park. Indigenous People Lived Here 10,000 Years Ago Scientists have traced the existence of humans inhabiting Glacier National Park back more than 10,000 years. They’ve found evidence that several Indigenous groups used the area to hunt, fish, and gather plants. The Blackfeet Indian Reservation, home to Montana’s largest Indigenous community, sits on 1.5-million acres on Glacier’s eastern border. The Park Houses Several Threatened or Endangered Species Doug Steakley / Getty Images While Glacier is home to hundreds of animals including 276 species of birds and 71 different types of mammals, the park also protects a number of dwindling species, with several animals listed as threatened. These include the grizzly bear, Canada lynx, and bull trout. Mountain Goats Are Commonly Seen in the Park Teresa Kopec / Getty Images There is a pretty good chance you’ll spot a mountain goat stomping along the sheer cliffs or at goat lick overlook, where the goats come to lick the minerals from the rocks along the riverbank. Mountain goats are also spotted near Logan Pass and are known to frequent hiking trails. Glacier Has 30 Species of Endemic Plants Beargrass (Xerophyllum tenax) growing along footpath going through valley, Gunsight Lake, Glacier National Park. Jake Pfaffenroth / Getty Images Because a number of ecosystems meet near Glacier National Park, plants flourish. The community of plants, trees, and wildflowers found here is quite diverse. The park is said to have 30 species that are endemic to the northern Rocky Mountains. And of the nearly 1,200 species of vascular plants, 67 have been declared sensitive by state officials in Montana. The Park Has 734 Miles of Hiking Trails The best way to see and experience Glacier is on foot. And with 734 miles of trails crisscrossing the park, there are hikes for all abilities. From easy nature paths like Trail of the Cedars, Hidden Lake, and Running Eagle Falls, to longer day hikes like the Highline Trail, a challenging 11.4-mile jaunt, and the ever-popular, heavily traveled Grinnell Glacier Trail, a tough but rewarding 10.3-mile round trip. There are also opportunities for permitted backcountry trips. It Snows a Lot and Plowing Is Difficult Snow season runs from mid-October to mid-June, so for much of the year the park is blanketed in snow. And flakes can fly at any time of year in the higher elevations. The average snowpack in Glacier is around 16-feet, which makes for some difficulty in clearing the Going-to-the-Sun Road for traffic. Plows typically start work in early April and it can take 10 weeks to complete the job. The road is typically fully open in late June or early July. The Landscape Shines on the Big Screen Jack Nicolson drove it and Tom Hanks ran through it. The opening scenes of Stephen King’s thriller "The Shining" show Nicolson driving up the park’s Going-to-the-Sun Road with overhead shots filmed around Mary’s Lake. The park also served as a backdrop in "Forrest Gump," when Hanks was running across America.