We re-met the couple from Oaklahoma - Shawn & Dee (the one's we met yesterday at Cooke City) and ended up chatting for quite a while. We decided to ride together to the upstream section of Yellowstone River where there was an even taller waterfall and you could see the power of the river up close.
We rode together for a while alongside the river, past grasslands, buffalo herds and the huge lake until we came to an intersection where Shawn & Dee turned left and we went right. We waved our goodbye's and wished we could have spent more time together.
We'd had enough of Yellowstone by this stage and decided to make our way out of the Park via the west exit. That is until we got caught in a very long traffic jam. Being on a bike we were able to slowly pass all the cars, all 100 of them, and when we got to the front of the line we discovered a car had stopped in the middle of the road to watch one solitary deer! There was a pull-over area within a few meters, but no, they just back-logged the traffic for miles!