Waterton-Glacier International Peace Park

Park Transboundary US-Canada park linking mountain ecosystems

Waterton-Glacier International Peace Park links Montana’s Glacier National Park with Alberta’s Waterton Lakes National Park; hikers, wildlife viewers and boaters come for alpine trails, glacial lakes and cross-border scenery.

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Waterton-Glacier International Peace Park is a transboundary protected area that links Glacier National Park in Montana (U.S.) with Waterton Lakes National Park in Alberta (Canada). The parks were combined as an international peace park in 1932 and protect contiguous ranges of the Rocky Mountains.

The landscape includes high mountain peaks, glaciers, alpine valleys, and freshwater lakes. Key visitor assets include extensive hiking trails, abundant wildlife such as bears and mountain goats, and major scenic routes including the Going-to-the-Sun Road in Glacier National Park.

Glacier National Park on the U.S. side was established in 1910 and Waterton Lakes National Park on the Canadian side was established in 1895; the two parks were formally linked as the Peace Park in 1932. Management is coordinated between Parks Canada and the U.S. National Park Service.

The Peace Park straddles the international boundary between northwestern Montana and southern Alberta in the Rocky Mountains. The closest visitor communities are the Waterton townsite on the Canadian side and the gateway towns on the U.S. side that provide trailheads and access into Glacier.

  • International peace park: The park is an international transboundary protected area established by Canada and the United States in 1932 to link their adjacent national parks.
  • Border crossing: Border formalities apply when crossing between the Canadian and U.S. sections by road or trail, so carry proper travel documents.

What to See #

  • Glacier National Park (U.S.): The U.S. portion designated as Glacier National Park protects high Rocky Mountain landscapes, alpine peaks, glaciers and the famous Going-to-the-Sun Road that crosses the park.
  • Waterton Lakes National Park (Canada): The Canadian portion designated as Waterton Lakes National Park protects foothills and lake landscapes around the Waterton townsite and adjacent mountain valleys.
  • Going-to-the-Sun Road: A major scenic mountain road that traverses Glacier National Park; it is a primary visitor route and is typically open seasonally in summer.
  • Waterton townsite: Small lakeside settlement that serves as the main visitor hub on the Canadian side, with boat tours and trailheads into the park.
Waterton-Glacier International Peace Park
Waterton-Glacier International Peace Park spans Glacier National Park (Montana, USA) and Waterton Lakes National Park (Alberta, Canada)
48.6875, -113.8051
National parks open year-round; visitor centre hours vary seasonally (check NPS and Parks Canada websites)
Entrance to Glacier National Park: US$35 per vehicle, 7-day pass (prices subject to change); Waterton Lakes National Park charges via Parks Canada passes - check parks.gc.ca for current rates

How to Get to Waterton-Glacier International Peace Park #

The Peace Park is accessed from Glacier National Park in Montana (closest gateway towns: West Glacier and St. Mary) and from Waterton Lakes National Park in Alberta (town of Waterton). From Calgary, drive about 3 hours to Waterton; from Kalispell/Glacier Park International Airport it’s 30-60 minutes to Glacier NP entrances. Crossing between parks requires valid travel documents.

Tips for Visiting Waterton-Glacier International Peace Park #

  • Plan any crossing of the International Peace Park with separate permits/passes: Glacier National Park (US) and Waterton Lakes (Canada) each require their own park passes.
  • Drive the Going-to-the-Sun Road (Glacier side) in late June-September for the most dramatic vistas - check for seasonal openings and vehicle size restrictions.
  • Bring layers and prepare for sudden weather changes at altitude; even summer days can be chilly above tree line.

Best Time to Visit Waterton-Glacier International Peace Park #

Best visited in summer for maximum access and services; late spring and early autumn reward with fewer people and vivid seasonal colors.

Summer
June-August · 5-20°C (valley to alpine)
Peak wildflowers, most trails open, and full park services; busiest season for road-accessible viewpoints.
Late Spring/Early Autumn
May-June and September-October · 0-15°C
Fewer crowds; variable snow at higher elevations but great for wildlife viewing and shoulder-season solitude.

Weather & Climate near Waterton-Glacier International Peace Park #

Climate

Waterton-Glacier International Peace Park's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -14°C to 21°C. Moderate rainfall (795 mm/year).

Temperature & Rainfall
Temperature Range
21°
Warmest Month
-14°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -5°C and lows of -14°C. Moderate rainfall (60 mm).

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-14° -5°

Weather

60 mm
Rainfall
5.2 m/s
Wind
Light Breeze

February

February is freezing with highs of -2°C and lows of -11°C. Moderate rainfall (52 mm).

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-11° -2°

Weather

52 mm
Rainfall
4.6 m/s
Wind
Light Breeze

March

March is freezing with highs of 1°C and lows of -9°C. Moderate rainfall (61 mm).

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-9°

Weather

61 mm
Rainfall
4.7 m/s
Wind
Light Breeze

April

April is cold with highs of 5°C and lows of -4°C. Moderate rainfall (71 mm).

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

71 mm
Rainfall
4.5 m/s
Wind
Light Breeze

May

May is cold with highs of 10°C and lows of 0°C. Regular rainfall (93 mm).

Comfort

Feels Like Cold
C
Temperature
11°

Weather

93 mm
Rainfall
4.4 m/s
Wind
Light Breeze

June

June is cold with highs of 15°C and lows of 4°C. The wettest month with 94 mm of rain.

Comfort

10°
Feels Like Cold
10°C
Temperature
15°

Weather

94 mm
Rainfall
4.1 m/s
Wind
Light Breeze

July

July is cool with highs of 20°C and lows of 6°C. Moderate rainfall (51 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
20°

Weather

51 mm
Rainfall
3.7 m/s
Wind
Light Breeze

August

August is cool with highs of 21°C and lows of 6°C. Moderate rainfall (54 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
21°

Weather

54 mm
Rainfall
3.6 m/s
Wind
Light Breeze

September

September is cold with highs of 15°C and lows of 3°C. Moderate rainfall (62 mm).

Comfort

Feels Like Cold
C
Temperature
15°

Weather

62 mm
Rainfall
3.9 m/s
Wind
Light Breeze

October

October is cold with highs of 8°C and lows of -2°C. Moderate rainfall (65 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

65 mm
Rainfall
4.6 m/s
Wind
Light Breeze

November

November is freezing with highs of 0°C and lows of -8°C. Moderate rainfall (74 mm).

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-8°

Weather

74 mm
Rainfall
5.1 m/s
Wind
Light Breeze

December

December is freezing with highs of -5°C and lows of -13°C. Moderate rainfall (58 mm).

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-13° -5°

Weather

58 mm
Rainfall
5.2 m/s
Wind
Light Breeze

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