Letter from Robert D Edson to Edwards, Secretary of the Aboriginal and Historic Relics Board, relating to canoe trees near the Blanchetown Lock (includes a hand-drawn map of Siphon Creek near Blanchetown and handwritten note), 28 September 1972.

People mentioned: Mr Corcoran

Places mentioned: Blanchetown (SA), Siphon Creek (SA)

Hand-drawn map separated from letter and located in oversized folder for AA83.

Quarto handwritten letter & large hand-drawn map & small note, 4 pages