Bayou Sara was a town in West Feliciana Parish, Louisiana, United States until the Mississippi River washed it away in 1927. In the early 1800s it was the most important landing between New Orleans and Natchez, Mississippi. According to the American Guide to Louisiana, Bayou Sara was "founded in 1790 by John H. Mills and Christopher Stewart, who established a trading post on the river which grew into one of the most flourishing ports between Natchez and New Orleans. With the advent of the railroad, trade diminished and the town gradually declined, so that now all that remains of Bayou Sara are a few wooden shacks and a tall, uninscribed monument, and these have been absorbed by St. Francisville."