The modern Zoan Church is larger, but on the site of the Civil War period church. On April 30, General Richard H. Anderson's division received orders to block the Union advance from Chancellorsville to Lee's rear at Fredericksburg. He formed a line along a ridge that the church sits on--the highest ground from there east to the Atlantic Ocean. The Confederates not only occupied high ground, but blocked three roads. Only the winding River Road leading to Fredericksburg was not covered.