Survey Title: Blake's Farm Swallet
Surveyor(s): Ellis, B.M. (SMCC)
Year: 1961
Standard: ns
Grade: ng
Scale: 1cm = 10ft
References: Not published
Notes: Ellis survey- 26th feb 61; crg grade - not stated; plan, elevation - n-s; e-w.
Additional Notes: Whole cave lies within 10 radius. surveyed length 100ft approx. depth 70ft approx.