Chapter 1 of the first book about the wildlife of East and West Wyoming Also a quick notice The US National Park Service is searching for rouge / missing Park Rangers all around the US, they are always wearing a stereotypical park ranger hat and will look normally 70 years old, these are Greyhairs, they are easy to approach and are normally driving an official US National Park Service work truck, the 70 year olds (Greyhairs) are easy to approach. On a more rarer case, you might find a more younger looking one, these are Talls, they can look 20 - 45 years old, approach with extreme caution if you see a Tall.