There is a backpacking trail along the snake River near the south entrance to Yellowstone National Park. Right away there is a pretty wide stream crossing. Following that, a long flat trail through grassy fields and forest. Along the way, we found soooo many garter snakes both on our hike in and out. There are several campsites along this trail. We stayed at a campsite that forked off to the left. After crossing another small stream the campsite is just beyond the rocky shore below a grassy hill amongst some trees. Campsite itself is level and has some bear hangs. A small fire pit and places to sit. Very primitive but beautiful. Had a blast both times I stayed here as a wildlife research technician in the park.