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The geologic history of Glacier National Park is read in the numerous exposed layers
of Precambrian sedimentary formations. These extremely well preserved sediments
date back to over 1 billion years. Subsequent sculpting by massive bodies of ice
has transformed this area into a dramatic example of glacial landforms.
Today several small alpine glaciers of relatively recent origin dot the mountains.
Due to its geographic location and geologic history, Glacier National Park contains
a particularly rich biological diversity of plant and animal species. This
combination of spectacular scenery, diverse flora and fauna, and relative isolation
from major population centers have combined to make Glacier National Park the
center of one of the largest and most intact ecosystems in North America.
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