Physical description

Colour photograph: 'showing tunnels below the cement where the miners chipped the undersurface to get the gold The thickness of the cement can be seen' Loose sand and gravel above the cement has already been removed. Image shows layer of cement, tunnel visible on LH side, clay and gravel in front.
(see Mosaic 4400.220 for detailed information regarding the White Hills, written by Dr. Ralph Birrell)