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Then about 170 million years  Pune India ago, the earth’s tectonic plates collided with such force that the ancient lands buckled, forming about 70 to 90 million years ago what are now the Pune India Mountain ranges. After the initial collisions,  Pune India matter settled down for another 35 million years, give or take, while the mountains  Pune India continued to rise, albeit at a slower pace.

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At some point, a stirring occurred, a slight shifting as a new plate collision ensued, and out of the great underneath, those ancient, super-hardened layers from the long-gone sea broke the surface, thrusting a huge plate up and over the younger formations. This wedge (later to be named the “Lewis Overthrust” in honor of Meriwether Lewis) would expose those long-dormant Proterozoic layers that were nearly one billion years older than the newly formed crust.

This was not in the natural order. Billion-plus-year-old layers and rocks stood on the shoulders of much younger ones. This was not an abrupt, cataclysmic event. The wedge heaved itself up and over the younger layers, continuing to compress, seeking its final resting place. Creeping in a northeasterly direction at less than a snail’s pace, it arrived at its present location some 50 miles from the original eruption site. Over millions of years, it marched, coming to a halt in what is northwestern Montana. Contained in a section of that colossus was the area to be known as Glacier National Park. Even to this day, throughout the park one can witness on the faces of Glacier’s mountainsides the first artistry of the earth’s evolution.

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