Burning of Chambersburg. Over this road Gen. John McCausland's Confederate cavalry marched north on July 29, 1864. By way of Mercersburg, they reached and burned Chambersburg next morning, and were at McConnellsburg next night. (missing) Blairs Valley Rd. at Hunter Rd., Montgomery Township, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap