Grand Canyon is a valley in Warren County in the U.S. state of Missouri. The valley is an approximately four mile section of Charrette Creek which has a relatively wide floodplain (about 0.25 mile wide) between high canyon walls (about 300 feet high). The north end of the "canyon" is at 38.7217°N -91.0892°W and the south or downstream end is at 38.6589°N -91.1039°W.[1]
The name of the valley is an allusion to the Grand Canyon in Arizona.[2]