The earthwork of an oval mound circa 19m by 12m is visible on aerial photographs taken in 1947. This is one of two probable post medieval livestock refuge mounds within a field in Whalebone Marshes. This field along with the mound was in arable cultivation in 1978. Refuge mounds provided an area of high ground for livestock to occupy in the event of a flood and numerous refuge mounds were built on the marshes of the Hoo Peninsula. This site was mapped from aerial photographs as part of the English Heritage: Hoo Peninsula Landscape Project.