Sand mine
Extensive workings, now mostly destroyed by construction of M20
References
"Kent & East Sussex Underground", Kent Underground Research Group
References
CSS Records Vol 6, page 39
Records of the London Speleological Group Vol 1, page 34
References
CSS Records Vol 6, page 39
"Caves & Tunels in SE England Part 4", Chelsea Speleological Society, page 56
“Caves & Tunnels in Kent”, Chelsea Speleological Society page 39