A Masterful Retreat. As Gen. George W. Morgan's Union force, 8,000 when here, retreated from Cumberland Gap, they were harassed from West Liberty by CSA General John H. Morgan's Raiders. Failure of reinforcements to reach here caused Confederates to leave October 1, 1862 and rejoin main CSA force in Lexington. Union forces reached Greenup Oct. 3, 200 miles in 16 days. See map other side. Originally erected in 1964.