The text of the sign is as follows:
Camp Mason and Dixon
Camp Mason and Dixon was an 1861 Union camp that was situated on the current Route 220 South near the Maryland state line as it borders Cumberland Valley Township. Intended to be used as a bivouac for the troops coming to aid General Lew Wallace in Cumberland, Maryland as he anticipated an attack from Rebel forces, it turned into a place known for illness and death. The 1500 man brigade at Camp Mason and Dixon consisted of the 13th PA Reserves (the Bucktail Regiment), the 5th PA Reserves, and Capt. Campbell's 1st PA Reserve Artillery and was commanded by Colonel Charles Biddle. The brigade waited for nearly two weeks before being ordered to proceed across the state line. The conditions were so unsuitable it became known as "Camp Misery and Dispair." Today a small scale replica cannon and fourteen grave markers indicate the resting of the unfortunate soldiers that never made it to the seat of war.