This past summer, a friend and I took a little 3 day road trip to check out some areas we had never been to before. We live near Idaho Falls. It wasn't a fishing trip, so we didn't take any gear. We went North and then through Yellowstone and out the East entrance, to Cody Wyoming. Took in the Buffalo Bill museums there. Then proceeded over Big Horn pass and down to Sheridan. Checked out the Big Horn River. It's now on my bucket list. We then went west to the Little Bighorn National Battlefield. Highly recommended. From there, west to Billings. We turned South a bit further west from Billings, and took the road over Beartooth Pass, down into Yellowstone Park again. Keep your cameras handy. Spectacular scenery. Plan three days to see the park and fish the streams. That's about half enough time for a rushed trip. Lots of streams and lakes in the area outside the park as well. Then there's Grand Teton National Park. On second thought, forget it. You'd need the whole summer.