Gettysburg National Military Park
The Gettysburg National Military Park protects and interprets the landscape of the 1863 Battle of Gettysburg during the American Civil War. Located in Gettysburg, Pennsylvania, the park is managed by the National Park Service. The GNMP properties include most of the Gettysburg Battlefield, many of the battle's support areas during the battle (e.g., reserve, supply, & hospital locations), and several other non-battle areas associated with the battle's "aftermath and commemoration", including the Gettysburg National Cemetery. Many of the park's 43,000 American Civil War artifacts are displayed in the Gettysburg Museum and Visitor Center.
Columbia, Pennsylvania
With the Union Army of the Potomac hastening northward into Maryland and Pennsylvania, Robert E. Lee ordered his widely scattered forces to withdraw to Heidlersburg and Cashtown (not far from Gettysburg) to rendezvous with other contingents of the Confederate Army. The burning of the Columbia-Wrightsville Bridge thwarted one of Lee's goals for the invasion of Pennsylvania, and General Gordon later claimed the skirmish at Wrightsville reinforced the erroneous Confederate belief that the only defensive forces on hand were inefficient local militia, an attitude that carried over to the first day of the Battle of Gettysburg.