Existing comment:
Sideling Hill Cut North Bench
The sweep of geologic time exposed by this 380 foot slice into Sideling Hill spans about 20 million years. From the dark gray marine rocks at the far end of the north slope which are about 36 million years old, to the white continental sandstones at the top of the cut which are about 340 million years old, seas, rivers and marshes have left behind sediments in a layered story of the earth's formation and reformation. |