The plaque on the beacon reads: "This beacon was built as a triangulation station in December 1844 by
Sir Thomas MacLear (1794 - 1879) in his survey for the verification and extension of the
Abbé de la Cailles Arc of Meridian. It was restored to commemorate the centenary on the 14 July 1979 of MacLear's death. As Astronomer at the Royal Observatory he initiated the geodetic survey of South Africa."