: Yellowstone Rivers: It looks like the west side of the Park was hit with some rain. It doesn't seem to have been enough to mess things on the rivers. The Firehole is still very warm and we recommend skipping this river till Fall. For a more productive day head over to the Gibbon and put on a small attractor pattern. In the evening the river of choice is the Madison. Brown are starting to feed regularly on an Adams or Rusty Spinners. The longer you stay out towards sunset the more action you should see. Up to the northeast the rivers were spared by the storms. The Lamar and Soda Butte didn't have any spikes in their flows. In this part of the Park the fish are all about the terrestrials.