Black Walnut is a populated place located in St. Charles County, Missouri. It appears on the Florissant USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 437.98 feet (133.50 m) above sea level.
St. Charles County · Missouri
Black Walnut is a populated place located in St. Charles County, Missouri. It appears on the Florissant USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 437.98 feet (133.50 m) above sea level.