Masterful Retreat. General George W. Morgan's 9,000 USA force occupied Cumberland Gap June 18 to Sept. 17, 1862. Cut off from supplies, Morgan began 200-mile retreat. On way through here USA harassed by CSA Morgan's Raiders. Failure of reinforcements caused CSA withdrawal at Grayson, Oct. 1. Union retreat, from Gap to Greenup on Ohio River, made in 16 days. See map other side. Dedicated in 1964.