It is a cool site, a sinkhole opened up and filled with warm water drawing in mammoths for a dip. Sadly but to our benefit the walls were too steep and the mammoths couldn't escape.
This pit was found when someone was about to build a big housing development.
You can see the phones on the railings in the pictures, that is how you take the tour so as not to disturb the workers.
I wish there were more Woolies!
We did the tour which was only about 1 mile of it.
After that on to Mount Rushmore.
The results are cool including several tunnels through solid rock.
Mt Rushmore itself is kind of cool but we missed the tour because it was too late and we frankly were exhausted!
It has been a long day and we are driving again tomorrow so we just relax at home for the rest of the day.