Marc, I was in Yellowstone last week and what I saw was very troubling. I haven't been to YSNP in ten years. Ten years ago I looked out over fishing bridge and it was Cutts as far as you could see. Last week I saw "ZERO". I fished @ Buffalo Ford @ a time when there should have been fish from the head of the island all the around the bend upriver. I saw very few rises from large fish( 16'' and up). That river has turned into a place to catch 6'' fish or pure monsters. There are virtually no fish in between. It is still the place to go to catch a fish over twenty on a dry. The water was littered with bugs. Spinners were on the water like leaves in the fall here.