Port Gibson Battle Site is the location of the Battle of Port Gibson

Battle of Port Gibson

The Battle of Port Gibson was fought near Port Gibson, Mississippi, on May 1, 1863, between Union and Confederate forces during the Vicksburg Campaign of the American Civil War. The Union Army was led by Maj. Gen. Ulysses S...

 in the American Civil War

American Civil War

The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

.

It was declared a National Historic Landmark

National Historic Landmark

A National Historic Landmark is a building, site, structure, object, or district, that is officially recognized by the United States government for its historical significance...

 in 2005.

An extensive account of the Battle of Port Gibson is available.

There is a separate Registered Historic Place named Port Gibson Battlefield

Port Gibson Battlefield

The Port Gibson Battlefield was listed on the National Register of Historic Places in 1972. It is , more than two square miles. A somewhat larger, overlapping area, the Port Gibson Battle Site, was designated a National Historic Landmark and automatically listed on the National Register in 2005....

, which was added to the register in 1972. As it has a distinct reference number, it may or may not cover a different area than the area covered by the National Historic Landmark for "Port Gibson Battle Site".

In 2009, the Port Gibson battlefield was designated by the Civil War Preservation Trust as one of its annual Top 10 most endangered Civil War battlefields.