USA - Canada - Waterton Glacier International Peace Park

"In 1932 Waterton Lakes National Park (Alberta, Canada) was combined with the Glacier National Park (Montana, United States) to form the world's first International Peace Park. Situated on the border between the two countries and offering outstanding scenery, the park is exceptionally rich in plant and mammal species as well as prairie, forest, and alpine and glacial features." 

Source: UNESCO World Heritage

Postcard 1 - USA - Glacier National Park

Hanging Gardens of Glacier National Park in Montana with over 50 glaciers, 200 lakes and rivers and 50 miles scenic drive. Thanks to Kelsey of Helena, Montana.

Postcard 2A - CANADA - Waterton Lakes National Park

Waterton Lakes National Park prepaid postcard by Canada Post - sent by April in Canada.

Postcard 2B - CANADA - Waterton Lakes National Park

Waterton Lakes National Park of Canada. Thanks to Dawn of UK who visited this beautiful national park and bought this postcard there in Canada and mailed it from UK.

Postcard 2C - CANADA - Waterton Park - Crypt Lake Trail

Hking trail with tunnels, plunging waterfalls and soaring cliffs at Crypt Lake Trail of Waterton Park. Thanks to Dawn of UK who went hiking here, bought this card and sent it from back in UK.