Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Humber Charts: Surveys conducted by the Humber Conservancy Board (including cross sections and sounding sheets) > Humber Conservancy Board: Section Drawings of Foul Holme Deposit Area > Humber Conservancy Board: Foul Holme Sand contents above and below L.W.O.S.T.