Survey Title: Cow Hole, Mendip. From rough survey by Wyndham Harris.
Surveyor(s): Harris, Wyndham
Year: 1936
Standard: ns
Grade: ng
Scale: 1"=50ft
Size: 3.5"x5.3"
References: Brit Cav 3,24 (1937)
Notes: Elevation only
Additional Notes: Same survey as that published in Balch's - Mendip its Swallet Caves... 2nd ed. p.53 (1948)