Most of Ballwin sits on a fairly level, elevated plain separating the valleys of the [[Missouri River]] to the north and the Meramec River to the south. A few small streams drain the area, including Grande Glaize Creek, where the original settlement took place. The city has a total land area of 8.99 square miles, and an average elevation of 630 feet.<ref>https://web.archive.org/web/20120702145235/http://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt</ref> | Most of Ballwin sits on a fairly level, elevated plain separating the valleys of the [[Missouri River]] to the north and the Meramec River to the south. A few small streams drain the area, including Grande Glaize Creek, where the original settlement took place. The city has a total land area of 8.99 square miles, and an average elevation of 630 feet.<ref>https://web.archive.org/web/20120702145235/http://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt</ref> |