Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Nahanni National Park' has mentioned 'North America' in the following places:
Occurrence Sentence Text Source
Over the last 2 million years, glaciers have covered most of North America, creating most of the land formations seen today.
This has left many geological features in the park much more time to develop than most of North America had.
Within the property are examples of almost every distinct category of river or stream that is known, along with one of North Americaxe2x80x99s most impressive waterfalls, Virginia Falls.
Criterion (vii): The South Nahanni River is one of the most spectacular wild rivers in North America, with deep canyons, huge waterfalls, and spectacular karst terrain, cave systems and hot springs.