The site with the so-called Retief Rock thereon, situated on the Remainder of the farm Aberdeen 245 in the Harrismith District, in extent 1,3609 (one comma three six nought nine) morgen, as indicated by the figure a.b.c.d. on Surveyor's Diagram S.G. No.1 006/1937 dated November 1937 and filed in the office of the Surveyor General in Bloemfontein and on file 9/2/316/14 in the office of the National Monuments Council in Cape Town.