Lake McDonald

Lake McDonald is the largest and one of the most beautiful lakes in Glacier National Park — a deep, glacier-carved expanse some ten miles long, cradled among forested mountains on the west side of the park at the foot of the Going-to-the-Sun Road. Its astonishingly clear, cold water mirrors the surrounding peaks and is famous for the smooth, colorful pebbles — red, green, maroon and tan — that glow beneath the shallows along its shores.

Carved by a great Ice Age glacier that gouged the long, deep basin, Lake McDonald is ringed by dense forests of cedar, hemlock, larch and fir, and offers boating, paddling, fishing and lakeside walks, with the historic Lake McDonald Lodge on its eastern shore. The clear water, the colorful stones, the reflections of the peaks and the quiet forested setting make it one of the iconic scenes of the park. A serene and beloved gateway to Glacier’s grandeur, Lake McDonald is a treasured natural icon of Montana.

Summer (July through September) is the prime season, when the water is at its most inviting, the boat tours run, the Going-to-the-Sun Road is open from the lake, and the long days light the clear water and colorful stones — though it is also the busiest. Late spring brings high water and fewer crowds; September offers crisp air and quiet; and fall lights the larch in gold around the lake. Calm mornings give the finest reflections. Summer for the full experience and fall for the color and quiet are highlights; come early in the day for parking, calm water and the best light on the lake.

The forests and shores around Lake McDonald host white-tailed and mule deer, moose, elk, black and grizzly bears, and a rich birdlife, with bald eagles and ospreys fishing the lake, harlequin ducks and waterfowl on the water and streams, and the songbirds of the cedar-hemlock forest. The clear, cold lake holds native bull and cutthroat trout and other fish. The lakeshore, forest and inflowing McDonald Creek support varied wildlife. Watch from the shore or the water, keep your distance and carry bear spray on the trails — the lake and its forests offer fine wildlife watching in the heart of the park’s west side.

Lake McDonald’s water is very cold year-round — cold-water immersion is dangerous, so wear a life jacket when boating and take care swimming. Mountain weather can change fast, bringing wind and waves to the long lake; check conditions before paddling far from shore. The surrounding forests and trails are bear country, so carry bear spray and make noise. Watch footing on slippery shoreline rocks and near McDonald Creek and the falls. Supervise children near the cold water. Respect the cold lake, the changeable weather, the swift creek and the bears of the surrounding forest.

Lake McDonald offers boating, kayaking, canoeing and paddleboarding on its clear waters, historic wooden boat tours from Lake McDonald Lodge, fishing for native and other trout, and lakeside walks and pebble-hunting along the colorful shore. The lake sits at the foot of the Going-to-the-Sun Road, making it a base for exploring the park, with nearby trails to Avalanche Lake, Trail of the Cedars and McDonald Falls. Swimming is possible (though the water is cold), and the calm mornings offer mirror reflections of the peaks. Paddling the clear water, taking the boat tour and walking the colorful shore are the signature draws of this beautiful lake.

The Lake McDonald valley lies in country long traveled by the Salish, Pend d’Oreille and Kootenai peoples of the west side. After the Great Northern Railway opened the region, the Swiss-chalet-style Lake McDonald Lodge was built on the eastern shore in 1913, becoming a beloved park landmark, and the lake became a gateway for early visitors arriving by boat before roads reached it. With the completion of the Going-to-the-Sun Road in 1933, the lake became the western threshold of the great drive. Lake McDonald preserves this beauty and its early park heritage, a treasured icon of Glacier and Montana.

Lake McDonald fills a long, deep basin gouged by a massive Ice Age valley glacier that flowed down from the Continental Divide, carving the classic U-shaped trough the lake now occupies and leaving a moraine that dams its lower end. The lake is about 10 miles long and nearly 500 feet deep. The colorful pebbles on its shores — red and green argillite, tan and maroon — come from the ancient Belt Supergroup sedimentary rocks of the surrounding peaks, their colors revealing whether the iron in the rock formed above or below water. The glacial carving and the ancient colorful rock created this beautiful clear lake.

Lake McDonald lies in the lush, wet western valleys of Glacier, ringed by the park’s finest western red cedar and hemlock forest — an inland temperate rainforest — along with larch, spruce and fir, while the clear, cold, nutrient-poor lake supports native fish and clean-water species. McDonald Creek feeds and drains the lake through this rich forest. The clarity of the water reflects the pristine watershed. Protecting the lake’s clear water (including stopping aquatic invasive species), the inflowing streams and the surrounding ancient forest sustains both the ecology and the serene beauty of this iconic Glacier lake.

Lake McDonald, with its crystal water, colorful stones and mirror reflections of the peaks, holds a treasured place among the scenes of Glacier National Park — one of the most photographed and beloved spots in the park, and for many the serene first glimpse of Glacier’s grandeur at the foot of the Going-to-the-Sun Road. Graced by the historic Lake McDonald Lodge and rooted in the heritage of the region’s Native peoples, the lake embodies the lush beauty of the park’s west side. Lake McDonald is a cherished icon of Glacier and Montana.

Lake McDonald is on the west side of Glacier National Park, just inside the West Glacier entrance off U.S. 2 (near Kalispell and its airport), along the start of the Going-to-the-Sun Road. A park entrance fee applies. The Apgar area at the foot of the lake has a visitor center, lodging, a campground, a boat launch and rentals, and Lake McDonald Lodge sits on the eastern shore with boat tours. Parking fills in peak season; timed vehicle reservations may apply to the Sun Road corridor. Check the National Park Service for fees, reservations, services and conditions before visiting.

The National Park Service protects Lake McDonald, its clear water and its forested shores. Visitors help by cleaning, draining and drying all watercraft to prevent aquatic invasive species (a serious threat to the park’s pristine lakes), not moving the shoreline stones, keeping a safe distance from wildlife, carrying bear spray, staying on trails, and packing out everything. The lake’s remarkable clarity depends on its protected watershed. Protecting the clear water, the inflowing streams and the surrounding ancient forest sustains both the ecology and the serene beauty of this iconic Glacier lake.

A park entrance fee applies. All watercraft must be inspected and must be cleaned, drained and dried to prevent aquatic invasive species; motorized and trailered boats have specific rules — check before launching. Camp only in designated campgrounds or with a backcountry permit. Keep your distance from wildlife and store food properly. Pets are restricted to developed areas and not allowed on trails. Drones are prohibited. Do not remove the colorful shoreline stones. Pack out all trash. Check the National Park Service for boating rules, fees, reservations and current regulations before visiting.

The Apgar Village and West Glacier lie at the foot of the lake, with Lake McDonald Lodge on the eastern shore, the Going-to-the-Sun Road climbing east toward Logan Pass, Avalanche Lake and the Trail of the Cedars nearby, and the Flathead Valley, Whitefish and Kalispell to the southwest. The peaks of Glacier and the Flathead Valley define the region. Lake McDonald is the serene western gateway to Glacier National Park, a centerpiece of a Northern Rockies adventure, easily combined with the Going-to-the-Sun Road, the park’s trails, and the towns of West Glacier and Whitefish.

Come to the shore at Apgar or Lake McDonald Lodge early on a calm morning for mirror reflections of the peaks and the best light on the colorful pebbles — bring a camera and look for the red, green and maroon stones glowing beneath the clear shallows. Paddle or take the historic boat tour on the clear water, and use the lake as a base for the Going-to-the-Sun Road and nearby trails like Avalanche Lake. Clean your boat to protect the lake, carry bear spray on trails, dress for cold water, and arrive early for parking in peak season.