Lying at the foot of the Cheviot Hills are deposits of sand and gravel, which, between Wooler on the north and Glanton on the south, cover a considerable area, occupying the greater part of the lower valleys of the Breamish and other tributary streams of the Till. They form mounds and ridges running in different directions, often dividing and reuniting in a very irregular manner. They are indicated, along with deposits at greater altitudes, on the Drift Edition of the Map of the Geological Survey of England (Sheets 109 N. W. and 110 S. W.) as “sands and gravels of Glacial age”. It is for the purpose of describing these accumulations and in some measure elucidating their source and mode of deposition that this paper is written.