Fishing Yellowstone
Flyfisher's Guide To Wyoming (Book) by Ken Retallic
Details the best fishing waters with up-to-date info, from the famous waters of the Snake, Flat Creek, and North Platte to lesser-known fisheries such as New Fork and Lewis rivers, to Grand Teton and Yellowstone National Parks. Extensive travel info from lodging to outfitters.
Foam Park Hopper
Yellowstone Park has some ridiculously good hopper fishing in early fall. The Lamar River and the Gibbon River in particular run through some very open grassland that is full of grasshoppers.