Looking east across the southern defensive ditch.The tall trees near the left edge of the image,are atop the flood plain of the River Greta.
see http://pastscape.english-heritage.org.uk/hob.aspx?hob_id=19926
see http://www.roman-britain.org/places/greta_bridge.htm
see http://www.pastscape.org/hob.aspx?hob_id=1143630&sort=4&search=all&criteria=greta bridge roman fort&rational=q&recordsperpage=10
see http://www.pastscape.org/hob.aspx?hob_id=19926&sort=4&search=all&criteria=greta