Significant Traces of Dover’s Medieval town wall were exposed during a contractor's excavations between the River Dour and York Street roundabout. In places, the 2m to 3m thick curtain wall survived just below the pavement level and still stood to a height of almost 5m. The southern (seaward) face of the wall was constructed from large, neatly shaped greensand blocks. The lower facing stones were water worn, demonstrating that the sea once washed the foot of the curtain. It seems probable that the wall was constructed on the original Medieval foreshore, below the high water mark (location accurate to the nearest 1m based on available information)