Chalk, limestone, shale, and sandstone are all examples of sedimentary rocks. All these different sedimentary rocks are formed from the broken remains of other rocks that become joined together.

Oak Park is a 9-acre park situated on one of the many sedimentary ... beautiful ledges made of sandstone, limestone, shale and coal. It's a great spot for experienced rock climbers, with dozens ...

The gigantic Yellowstone Grand Canyon, lined with volcanic rock. With all the effects of hydrothermal activity, river erosion ...