If you're looking for some one-of-a-kind rock formations, you won't be disappointed by what this national park in Kansas has ...

While you may think of Kansas as nothing but flat prairieland, there are some surprises in store. This stunning lake is a ...

And this is where our small green sandstone rock comes into the story. Those mid-Pliocene sea-levels imply the West Antarctic Ice Sheet, or at least significant parts of it, had melted away - and ...