A friend in Mississippi advises the Drought is affecting Old Man River, too, and folks are out combing the newly exposed sandbars, finding an “old paddlewheeler or 2, civil war stuff, aincient bones… ” I don’t know how well the river bottom would preserve them, but there were a lot of steam packets on the rivers in the 19th Century, and a great many accidents. Twain’s Life on the Mississippi is all I know about it.