During the
Vicksburg campaign, Union forces crossed Brushy Bayou en route to the
Battle of Richmond on June 15, 1863, after which the town of Richmond was burned. A reconnaissance column also skirmished at Richmond on March 31, 1863, near the bayou; marker texts summarize the action. Nineteenth-century local accounts likewise place “old Richmond” where Brushy Bayou meets Roundaway Bayou. ==Hydrology and monitoring==