"“In conclusion, the GPR survey reflects in general a variety of anomalies ranging from 0.5 to 5.5 metres in depth that could be associated with ancient and contemporaneous structures such as pillars, foundations walls, slab flooring, extending over a large portion of the site. However, the exact nature of those anomalies has to be confirmed by systematic ground truthing, such as provided by archaeological trenching.”"
January 1, 1970
https://en.wikiquote.org/wiki/Archaeology_of_Ayodhya