Are facilities, such as showers available to visitors staying in the park but not in that reserved campground?
If you are not staying at a campground in the park, you need to ask the campground operator what the fee would be to use the shower facility. The operator will then let you know for certain if the facilties are open for general use, but telling you the fee or telling you that the facilities have been reserved exclusively for campground guests. In the gateway communities around Yellowstone National Park, there are public shower facilities available, here in West Yellowstone you will find them in the local laundromat. 63.