Artykuly z roznych dziedzin
Millions of years ago, what we know today as The Great Lakes, a shallow sea known as the
This magnificent landscape is believed to form with overgrazing the soft layer of the shale by farming that exposed this red iron rich material. The farming has stopped in 1931, however the erosion continues increasing this remarkable site in size.
The hills and gullies are composed of clay containing mostly red iron oxide and green iron oxide visible as greenish-gray bands throughout the land.