Figure 8 - Geology and Settlement in the Northern Lowland.
B.S.-Blown Sand; B.D.-Boulder Drift; F.G.-Late Glacial Flood Gravels ; S.Gm.-Glacial `Sands and Gravels occuring as mounds; S.Gp.-Glacial Sands and Gravels occuring as platforms ; A.-Aluvium ; P.-Peat.