Monument Rocks (Kansas)

Monument Rocks (also Chalk Pyramids) are a series of large chalk formations in Gove County, Kansas, rich in fossils. It is a National Natural Landmark. It was the first landmark chosen by the US Dept. of Interior as a national natural landmark. The chalk formations reach a height of up to 70 ft. and include formations such a buttes and arches. They were formed 80 million years ago. (...)