Primitive campground, and only 20 spaces so it fills up fast. We booked lodgings at nearby Roosevelt Lodge on a Tuesday in early June, then drove the two miles from there to Tower Falls the next morning at 7:30 a.m. There were three campsites scheduled to vacate that day, and two people in line in front of me. I waited two hours and got the third (and last) one by 9:30 a.m. There was also a handicap accessible campsite which was available for rent on the stipulation that if someone with a disability sticker showed up and requested that site they would have the right to kick out the person in it if that person did not have an official disability sticker. There was also a small grassy area for hikers and bikers to camp in.
The Tower Fall General Store is located along the Grand Loop Road at the base of the campground road, and a good place to go ft or ice cream.
We had made reservations at Canyon Campground just in case Tower was full, and managed to use the payphone at Tower to cancel those (for a $25 cancellation fee) once we secured the Tower Fall site.
The Tower Fall site is a great base location for the following trails: Lost Creek/Petrified Tree; Tower Fall hike; Yellowstone Picnic Area Trail; Trout Lake; the Lamar Valley; and several others.
The restrooms were pit toilets, but clean. Not all the campsites had water spouts, and we had to put all our stuff in bear boxes (even pkastic boxes that did not contain food).