The phrase commonly associated with the aftermath of the Battle of Gettysburg is The high-water mark of the Confederacy.

This term denotes the point during Pickett's Charge when the Confederate Army achieved its greatest incursion into Northern territory. Following this battle, the Confederacy encountered a series of challenges, signifying a crucial turning point in the Civil War. The phrase embodies the height of Confederate aspirations in the North, underscoring that Gettysburg was not just a major defeat for the South, but also a critical shift in the war's momentum in favor of the Union.