 The site also contains important Pleistocene/Quaternary mammal remains within
sediments infilling former caverns exposed on the north east face of Westbury Quarry.The swallet was excavated by William Stanton between 1991 & 1992 for spelaeological purposes.However, archaeological material was discovered, leading Stanton to separate the deposits he was removing and examine them for archaeological material, which included 42 sherds of Grooved Ware pottery and a polished greenstone axehead.