The earthworks of a possible medieval or post medieval saltern mound on Stoke Saltings, reused for post medieval livestock management, can be seen on aerial photographs taken in 1946. This mound is depicted on the 1876 Ordnance Survey map and its dimensions were circa 60m long, approximately 28m across at the northern end while only circa 15m at the southern end. It was surrounded by a ditch which was broken on the north-eastern and southern sides and the mound was connected to causeways at these points. No internal features can be identified on aerial photographs but some are depicted on the 1876 map. An oval pond was at the narrower end and may have marked the site of the original saltern building. The northern end of the mound appears to have been divided from the remainder by a narrow ditch. Either side of this is a straight sided pond. The breaks in the outer ditch either side of the internal division indicate some subdivision of the saltings for grazing. Grazing on the saltings must have largely been abandoned by 1896 by which time a considerable area of saltings had been removed (the mud was used in the manufacture of Portland cement). Subsequent erosion has removed all but the extreme eastern edge of the mound and flanking ditches. The north eastern causeway survives. Surprisingly, on the 2007 aerial photographs and lidar a small mound is visible at the location of the oval pond. This site was mapped from aerial photographs as part of the English Heritage: Hoo Peninsula Landscape Project.