They were actually standing on one of the boardwalks when we arrived, but slowly moved off so we could sidle alongside them with our cameras clicking.

We were a little too close to these powerful beasts for my comfort, but following the steps and instructions of our trusty and experienced guides the bison generally ignored us.

The steam created from the hot springs hitting the brutally cold air made for a mysterious, dreamy background, allowing us to get some great "artsy-fartsy" images...

Steamy bison.