Mac, we were over at Harrah's Horseshoe Casino in Council Bluffs IA yesterday. They now have W/E hookups ringing the west & south ends of the parking lot at the rear of the joint. Enter at main entrance, go all the south to the back lot. There are signs directing you to the registration office right there by the spots. East side of the Reg Office has a dump station built into the side of the bldg. Probably 20 along the west side and maybe 15 at the south end. All are backed up against the perimeter fence therefore no length restriction but they are side by side and large units could be squeezed when its crowded. Wasn't that way though on a Thursday tho.