Created By: South Hill Elementary School
Rockwall or Rockfall?
Beautiful scenery or danger ahead?
390 million years ago the land where we stand today was covered in a tropical ocean. The Acadian Mountains were 29,000 feet tall, they were as tall as the Himalayas are today. They eroded away over 30 million years and the pieces fell in layers in the inland sea. They kept building up and building up from the bottom of the sea. Animals and plants got smooshed together in the layers to make a mold. The animals and plants disintegrated, but their shapes can be seen in fossils in the rock wall. The sediment of the rock pressed together to make shale and sandstone. These are the two kinds of rock layers you see today. The sandstone is stronger than shale, and you can see that it is thicker. You can break the shale more easily than the sandstone. But don’t actually break the shale because this you can prevent the following sounds: crash, bash, rumble, crack. Remember, rockwall or rockfall?
This point of interest is part of the tour: Mrs. Miller's Buttermilk Falls State Park Tour