The High Water Mark of the Rebellion Monument[2] is a Gettysburg Battlefield memorial which identifies the Confederate Army of Northern Virginia units of the infantry attack on the Battle of Gettysburg, third day, with a large bronze tablet, as well as the Union Army of the Potomac's "respective troops who met or assisted to repulse Longstreet's Assault."

[3] The line is now generally marked with unit monuments which are also historic district contributing structures.

[4] The monument's designer identified the turning point of Pickett's Charge, as "unquestionably the "high water mark of this battle, and of the war!"

[5] Erected by April 27, 1892, the monument was recast to add two missing units[6] and then dedicated with a speech by then-former Governor Beaver advocating the battlefield become a National Park.

[7] The Marine Corps Band provided music, short addresses were made by Union Generals Schofield, Slocum, Webb, Veazey, and others, and Samuel M. Swope presented the monument to John M. Vanderslice of the Gettysburg Battlefield Memorial Association.