The Pennsylvania Columns, completed in 1912, honor the soldiers from Pennsylvania who served at Valley Forge during the 1777-1778 winter encampment. The two round columns with Corinthian capitals and rectangular plinths are constructed of Barre granite. Each column is topped by a bronze eagle, and each plinth has two bronze plaques with bas reliefs of officers from Pennsylvania. The bronze-work was sculpted by Henry Kirke Bush-Brown. The granite and bronze had started to deteriorate due to exposure to the elements. Significant cracks in the granite plinth had caused large pieces to become detached. The columns are approximately 32 feet high and 15-ft. x 7.5-ft. at the base.

Kreilick Conservation, LLC was retained to perform a conservation treatment of the Monument. The scope of work included gentle cleaning of all granite and bronze surfaces; removal of failed caulking and mortar; pointing of joints with color-matched mortar; filling of cracks with color-matched, lime-based injection grout; repair and stabilization of a cracked Corinthian capital by pinning, grouting and pointing; reinstallation of detached corner piece of plinth using stainless steel anchors; repair of broken corners of plinth with Dutchmen of color-matched Barre granite; re-orientation of south eagle to match orientation of north eagle; hot-waxing and buffing of all bronze elements.