Spent one night here, passing through Thermopolis. Set directly on street, though car noise wasn't too bad during the night. Did pick up at daybreak. Train did come by at 7:15 am (tooting horn) on a Saturday so don't plan on sleeping in lol. Owner is nice, pleasant to work with. Fairly level gravel spaces, few trees.
Cute little park. Extremely nice management. Clean!!! Restroom/showers dated but clean. Close to the hot springs!
BUT- it's on the main road and it is not quiet at all, including the train horn in the middle of the night- we got a very bad sleep.