of the earlier Borlase, conducted further investigations and excavations were carried out. He reproduced the etchings of his ancestor and found them much more valuable than any other contemporary sketch since the monument had been subjected to such considerable change. In 1952 the then owner Edward Bolitho from Tregwainton donated the plot of land with the monument to the National Trust. References External links Dolmens in Cornwall National Trust properties in Cornwall Penwith Tourist attractions in Cornwall Megalithic monuments in England Prehistoric sites in Cornwall Stone Age sites in Cornwall