Looking North.The outline of the Roman Fort of BROCAVVM,shows particularly well from the air. see http://www.ecastles.co.uk/philipdavis/English%20sites/348.html see http://www.roman-britain.org/places/brocavum.htm see http://www.visitcumbria.com/pen/brougham.htm see http://www.pastscape.org.uk/hob.aspx?hob_id=11988