Posts

Showing posts with the label granite

Acadia Rocks!

Image
One national park I have visited four times which has an interesting geologic history is Acadia National Park in Maine. At only 65 square miles, it’s a small park compared to others, but it’s a beautiful area of the eastern seaboard. Most of the park is in an area called Mount Desert Island. The topography is comprised of ridges and valleys running north and south that were excavated by massive ice sheets up to a mile thick. Protrusions of these immense ice sheets carved out lakes such as Eagle Lake and Jordon Pond on the west side of the park. The results of centuries of rocky seacoast being battered by waves has resulted in large, jutting granite formations with linear cracks and sea caves along the coast. As these ice sheets thickened 21,000 year ago and moved over the area, they sheared off mountain tops giving them a flatter, rounded appearance like Cadillac Mountain which rises to 1530 feet - the tallest area on the eastern seaboard. At the top of Cadillac Mountain, wher