Panoramic view of Lake McDonald with crystal-clear turquoise waters, surrounding pine forests and snow-capped mountains of Glacier National Park
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Lake
McDonald

Your guide to adventures, local gems and unforgettable views

Lake McDonald

3,153 ft Elevation
10 mi Length
472 ft Max Depth
6,823 ac Surface Area
Glacial Water Type

Lake McDonald is the largest lake in Glacier National Park — 10 miles long, a mile wide and 472 feet deep. Sitting at 3,153 feet elevation on the park's west side, its crystalline glacial waters reflect the surrounding peaks in shades of turquoise and emerald that photographers travel thousands of miles to capture.

Lake McDonald sunset reflection with colorful pebbles
Sunset & Pebbles
Mirror reflections at Lake McDonald
Mirror Reflections
Going-to-the-Sun Road
Going-to-the-Sun Road
Avalanche Lake
Avalanche Lake
Lake McDonald Lodge
Lake McDonald Lodge
Boardwalk under giant cedars on Trail of the Cedars
Trail of the Cedars
Mountain goat on Going-to-the-Sun Road
Wildlife

From its shores, the Going-to-the-Sun Road begins its legendary 50-mile traverse to Logan Pass. Boat tours depart from the historic Lake McDonald Lodge, kayakers paddle its glassy surface at dawn, and some of Glacier's most beloved trails — including Avalanche Lake and Trail of the Cedars — start just minutes away.

The lake's most distinctive feature is its colored rock beaches — smooth, jewel-bright pebbles of red, green, purple and cream. These are Precambrian argillite and siltite, more than 1.5 billion years old, polished by centuries of glacial action and now visible through up to 10 feet of crystal-clear water. The best spots to appreciate them are the Apgar shoreline and the beaches below Lake McDonald Lodge in calm morning light.

The forested shoreline shelters a remarkable ecosystem. Black bears and grizzlies forage in the undergrowth, mountain goats patrol the rocky slopes above, moose wade the shallower inlets and bald eagles hunt the surface year-round. Wildlife sightings are most common at dawn and dusk along the GTSR corridor and from the lodge docks — bring binoculars. The lake itself holds westslope cutthroat trout and lake trout, with designated fishing zones throughout the season.

Getting there: Located 10 miles inside the West Glacier entrance of Glacier National Park. Nearest towns: Whitefish (25 mi) and Kalispell (35 mi) via US-2.
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Things to Do

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How to Get Here

Lake McDonald is on the west side of Glacier National Park, 10 miles inside the West Glacier entrance via Going-to-the-Sun Road.

  • Whitefish, MT 25 mi — ~35 min drive
  • Kalispell, MT 35 mi — ~45 min drive
  • Missoula, MT 150 mi — ~2 hr drive
  • Great Falls, MT 225 mi — ~3 hr drive
  • Calgary, AB 155 mi — ~2.5 hr drive

By Car

Take US-2 to West Glacier, then follow Going-to-the-Sun Road 10 miles inside the park. From Kalispell via US-2 East (~45 min); from Whitefish via US-93 South then US-2 (~35 min).

US-2 US-93 West entrance

By Plane

Glacier Park Intl (FCA) in Kalispell is the closest airport — just 35 miles. Served by Delta, United and Alaska Airlines. Car rental available on-site.

FCA · 35 mi MSO · 150 mi

By Train

Amtrak Empire Builder stops seasonally at West Glacier station — right at the park entrance. Direct from Seattle (~9 hr) or Chicago (~24 hr).

Empire Builder Jun–Sep

Shuttles

Free NPS shuttles run along Going-to-the-Sun Road from July to mid-September. Airport transfers from FCA available via Groome Transportation.

Free NPS · Jul–Sep Groome · FCA

Peak season tip: Going-to-the-Sun Road requires a timed-entry permit (7 am–3 pm) from late June through Labor Day. Book ahead at recreation.gov. Vehicles over 21 ft are not permitted past Avalanche Creek.

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Guides & Articles

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Hidden Gem

Colorful Rocks of Lake McDonald — vivid red, green and purple Precambrian pebbles through the clear water

Geology

The Colored Rocks of Lake McDonald

The vivid pebbles on Lake McDonald's beaches are the result of 1.5 billion years of geological history. Glacial action carried Precambrian argillite and siltite from the surrounding mountains, polishing them into smooth gems of red, green, purple and cream. The lake's exceptional clarity — minimal nutrients, glacial filtration — lets you see them through up to 10 feet of crystal-clear water.

The best spots to appreciate them are the Apgar shoreline and the beaches below Lake McDonald Lodge, especially in calm morning light when there's no surface glare.

The science behind the colors

Plan Your Visit

Full planning guide

Know Before You Go

Bear Safety

  • Carry bear spray in an accessible holster — never packed away in your bag
  • Stay at least 100 yards from bears and wolves, 25 yards from other wildlife
  • Never feed or approach animals — it is illegal and may result in the animal being put down

Leave No Trace

  • Stay on marked trails — cutting switchbacks destroys fragile alpine vegetation
  • Pack out everything: all trash, food scraps and waste — no bins on the trail
  • Leave rocks, flowers and antlers exactly where you find them

Cold Water Warning

  • Water temperature rarely exceeds 50°F / 10°C — hypothermia can set in within minutes
  • No lifeguards are present anywhere in the park
  • Swim only close to shore at Apgar Village or Fish Creek Campground

Campfire Rules

  • Fires permitted only in designated fire rings at established campgrounds
  • Backcountry campfires are prohibited — bring a camp stove
  • Check current fire restrictions at nps.gov/glac before your visit

Gear & Connectivity

  • Pack layers and a waterproof shell — mountain weather changes without warning
  • Cell service is unreliable throughout the park — download offline maps before leaving
  • Bring sturdy boots, at least 2 L of water and adequate sun protection

Fishing Regulations

  • A valid Montana fishing license is required — from $15/day for non-residents
  • Some waters are catch-and-release only — always verify current park regulations
  • No fishing within 100 feet of fish ladders or active spawning areas

Frequently Asked Questions

Where exactly is Lake McDonald located?

Lake McDonald is located in northwestern Montana, inside Glacier National Park. Some visitors confuse it with a smaller lake of the same name in Nevada's Ruby Mountains, but the famous destination known for its historic lodge and colorful rocks is the Montana lake in Flathead County.

Do I need a vehicle reservation to enter in 2026?

No. For the 2026 season, the National Park Service has removed the vehicle reservation requirement for all areas of Glacier National Park, including the Lake McDonald valley and Going-to-the-Sun Road. Visitors only need to pay the standard park entrance fee.

How does the new Logan Pass parking limit work?

Starting July 1 through September 7, 2026, parking at Logan Pass is limited to a maximum of 3 hours per vehicle. The goal is to improve visitor turnover and reduce congestion. If you plan to hike longer trails like the Highline Trail, using the park shuttle system is strongly recommended.

How do I reserve the shuttle service for 2026?

Unlike previous years, the 2026 shuttle system requires a mandatory reservation ticket that costs $1.00 as a processing fee through Recreation.gov. Half of the tickets are released 60 days in advance, while the remaining tickets become available the day before at 7:00 PM MDT.

Why are the rocks at Lake McDonald so colorful?

The famous "rainbow rocks" are sedimentary stones called argillite. Their colors were formed more than a billion years ago depending on iron content and oxygen exposure. Red rocks oxidized in shallow water, while green and blue rocks formed in deeper, low-oxygen environments. Full geology guide →

Can I take the colorful rocks home as souvenirs?

No. Collecting or removing rocks, plants, or any natural features from national parks is strictly prohibited. The Leave No Trace policy helps preserve the lake's beauty for future visitors, so the best souvenir is your photos.

Are pets allowed at Lake McDonald?

Pets are only allowed in developed areas such as paved roads, parking lots, and campgrounds. Dogs are not permitted on hiking trails, undeveloped lake shores, or inside park buildings. Pets must remain on a leash no longer than 6 feet (1.8 meters) at all times.

Are there gas stations and restaurants inside the park?

There are no gas stations inside Glacier National Park, so visitors should fill up in West Glacier or Columbia Falls before entering. For food, the Lake McDonald Lodge area offers dining such as Russell's Fireside Dining Room and Jammer Joe's Pizzeria, plus basic supplies at Apgar Village.

Can you swim in Lake McDonald?

Yes, swimming is allowed, and Apgar Village is one of the most popular access points thanks to its easy shoreline access. However, the water is extremely cold — it comes from glacial runoff and rarely exceeds 50°F (10°C), which can quickly lead to hypothermia. Best spots & safety guide →

What is the best time of year to visit Lake McDonald?

Most facilities and services operate from late May through late September. July and August are the warmest and busiest months, while September is ideal for visitors looking to avoid crowds and enjoy fall colors, although some services begin closing by mid-September. Month-by-month guide →