This dataset shows the variation of the thickness of Superficial (Quaternary age) deposits across Great Britain. The data are presented as a vector map of interlocking hexagon cells (side length 1km, area c.2.6 Km2) covering the landmass of Great Britain as a regular grid. Each hexagon cell is attributed with a series of statistics about the thickness of the underlying Quaternary units (e.g. average); additional information relating to the thickness models and the coverage of underpinning data is provided. The data is all derived by spatially summarising the information originally created for the high-resolution Superficial Deposit Thickness Model (a 50m cell size raster model of thickness, first published in 2010).