26th August 2013, 11:39 AM
Don't trust 'negative' results, I've seen plenty of stuff consigned to 'Negative Watching Brief' report forms that was probably perfectly good archaeology - being topical (on another thread), a layer of 'natural cobbles' in one Watching Brief report in Whitby was almost certainly part of a medieval road I subsequently excavated a short distance away, can do you any number of other examples...