Description
Approx. 48 acres; in Elsah Township and the Village of Godfrey, 0.8 mi. SW of the mouth of Piasa Creek, S of Piasa Island; Secs 25&36, T6N, R11W and Sec 31, T6N, R10W, Third Principal Meridian
History
Named for the canvasback, a species of diving duck that are seen on the Mississippi River