A team of archaeologists has arrived in Angus to survey the world's most northerly Roman fort. Directors of The Roman Gask Project, Dr David Woolliscroft and Dr Birgitta Hoffmann, are at the ancient site near Stracathro, which was part of a line of Scottish watchtowers believed to be the oldest Roman frontier. Despite being discovered from the air almost 50 years ago, little is known about the structure of the fort near Brechin, which makes up part of the Gask Ridge frontier system. Assisted by volunteers from Liverpool University, the experts will use non-invasive survey techniques such as magnetometry and...