This happens every day, such as when a small excavation in a valley can bring down the whole mountainside (landslide).
The excavation in Cow Roast lead to the discovery of a number of objects both big and small.
Yigael Yadin conducted a few small excavations in the 1960s.
It fell over in 1945, and was re-erected in 1956 after a small excavation had been carried out.
During the last ten years there have been several small excavations which have confirmed the earlier findings and the importance of the site.
The University organised a relatively small excavation that ran over three years from 2000 until 2002.
Further small excavations, which took place in 2006, identified a structure which may have been associated with metal-working.
The quarry is now protected and only small excavations are allowed.
This is the most easily measured dimension, as it only requires small excavations at either end of the centreline.
A small excavation in 1993 failed to uncover the foundations of any stone buildings on the west side of the cloister.