During the Yazoo Pass expedition of the Civil War, Union Admiral Porter wrote that his flagship Cincinnati ran into a six-hundred-yard bed of willows under a full head of steam. "and there she stuck; the willow wythes ... held her as if in a vise." Taking advantage of the situation, Confederates pounded the flotilla with an artillery crossfire, and only with the greatest efforts was the Cincinnati freed to make her escape and end the failed expedition.