Brie and Harish joined us in Marietta. We left a bit after noon, heading to the Sistersville Town Dock. When we arrived there we found inadequate water. Trying to get off we heard something banging on the starboard prop. We're guessing it's dinged, some vibration we don't recognize at higher rpm. We moved up river to the Witten Towhead and dropped anchor. Took Lizzie to shore on the island, and again in the morning. Anchor set quickly and held well.