Just 26 miles south of Oakley stand the Smoky Pyramids or Monument Rocks, the first national natural landmark in Kansas. These chalk formations are sediment remains of ancient marine life up to 200 million years old.rn
Just 26 miles south of Oakley stand the Smoky Pyramids or Monument Rocks, the first national natural landmark in Kansas. These chalk formations are sediment remains of ancient marine life up to 200 million years old.rn