A brief history of Old Mountain Creek Post Office:
“Converted to a post office around 1906 the structure served the Alabama Confederate Soldiers Home until October 1939. The facility provided service to the community until December 5, 1975. The last Postmaster G.C. Kicker, Jr. donated the building to Confederate Memorial Park. It was moved to this site on May 16, 1988.”

According to comments following the photo on Flickr: “This old post office was moved (by helicopter) from its original site in 1988 and relocated to the Confederate Memorial Park south of Clanton, Alabama.”