Survey Title: Ludwell Cave, Nr. Hutton, Somerset
Surveyor(s): Irwin, D.J.
Year: 1974
Standard: CRG
Grade: 5d
Scale: 1/133
Size: 10 x 8
References: The Somerset Sump Index, McDonald, M.C. (ed.); Pub: Bristol : CDG, 3rd ed. up-date, Dec. 1993; 61pp (surveys)
Notes: Reprinted from BEC Cav Rep (18)