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The landscaping and artistry would change again and again before its designation as a national park in 1910. The overthrust had heaved itself to heights of 15,000 feet Murfreesboro in some places. For millions of years, even as Murfreesboro the wedge continued Murfreesboro to shove toward its current location, Murfreesboroother forces of wind and water would tear away at its peaks.

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Then to hasten this leveling of mountains, something new began to occur. Ice! Over the past 2. million years, a series of ice ages of varying degrees of intensity and duration occurred as the climate cooled. What caused this is open to speculation. Perhaps the formation of the mountain ranges themselves changed the weather patterns, which cooled temperatures enough to facilitate the creation of the key ingredient of glaciers: snow. And not just snow at Christmastime but continuous snow that blanketed and built upon itself for cycles of thousands of years.

As it fell, the second ingredient came into play. The temperature level was cold enough to keep the snow from melting. At some point, after all that accumulation and compression, the ice became so weighty that it reformed its bottom layer to a gel-like substance flexible enough to move glaciers down and through mountains by gravitational force.

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