This is a Pika (as shot by Penwarrior). I’ve seen Pika only once before–and that was on Trail Ridge Road in the Rockies. Pika are known to frequent the top of Mt. Washburn.
It’s 3 miles up–with an elevation change of 1,400 feet–which may not seem like a lot but for me it will be a challenge–right now my goal is to get up there before the end of June–but I WILL be there before we return–if nothing else I’ve got to have a chance to see the Pikas.
(and if you’d like to know more about the view from the top of Mt. Washburn, I highly recommend Lost in My Own Backyard by Tim Cahill. The opening chapter, when he describes how Yellowstone “blew” 6,000 years ago–and is, in reality, probably ready to blow again in the near future (sometime in the next 10,000 years) is worth the price of the book.)