Can't but agree - Alt US14 is a spectacular drive. You will pass the Bighorn Canyon (wild horses and big horn sheep) and the Medicine Wheel, definitely worth the short walk up there. If crossing over these high plains early or late in the day, the wildlife is prolific. This is where, on my first trip, I saw my first moose. He stood right in front of my vehicle which was not going anywhere until he decided to move. To this day I have no idea whence he suddenly appeared. I was so awe-struck that I did not think to reach for my camera, hence do not have any proof to back up this experience.
Lifey