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| This view from the end of the Petroglyph Trail shows the high, rugged core of the Split Mountain. Split Mountain is a great anticlinal fold. The mountain gets its name because the Green River cuts through the mountain rather the flowing through lower country that surrounds the uplift. The fact that the river cuts through the mountain is a reflection of the antiquity of the landscape and the ongoing erosional processes shaping it. Many millions of years ago, the Green River probably flowed across a gentle plain. In the last several million years the land has risen as the rivers have carved downward. This erosion has exposed even older geologic structures and rock formations that formed in the region long before the Green River flowed across the region. |
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