Out of breath and getting dizzy, I managed to get this shot off before having to sit down; I was digging leaf fossils out of that bluff just to the left of the milepost sign, when I heard this guy whistle out of the siding at Bridger. He was going to wait there for 1 more out of Guernsey, so I thought I had time to enjoy one of my other interests, fossil collecting. I heard him whistle and throttle up, and I started running; I had planned to get up a lot further on this favorite cut, but the thinner air wouldn't allow it.