90th PA Monument. Burial Party Photograph. Antietam Battlefield,

Pioneering historian William Frassanito used rocks and geological formations to locate the precise area where photographs were taken on Civil War battlefields.
The location of the 90th Pennsylvania, on the southern edge of the Miller Cornfield, commemorates the spot where the 90th fought during the battle, and, it is the location where a photograph was taken of a Union burial party after the battle.