Thanks Jim. I don't know how much striking out on my own I will be doing on this trip. I typically get up earlier than everyone else does (i.e. sunrise), but after that, it is all in tandem. I just worry about my pop's balance and mobility on these things. Yellowstone, which is what we typically do together, is easy. You almost don't need to leave your car. I get my shots in the morning before everyone gets up, and we do sunset from some place reasonable.

James