After a simple selection, Leonard and others chose the enclosure on the Southside as their target, for the obvious reason that the location of this wall was wasteland rather than agricultural land.
To be honest, conducting such preliminary exploratory work under the watchful eyes of a herd of dairy cows and farm workers was not an appropriate task, especially since they had not found any clues, and thus were unable to apply for and obtain a permit.
Using the cover of shrubs, Leonard and his team quickly began their excavation work with the probes and shovels they carried with them. As these items were exposed on the ground, they soon targeted them and initiated their excavation work.
These items were buried much shallower than imagined, so Leonard and his team completed thorough excavation work in just half an hour and figured out what exactly it was: