hadrians wall with cawfields lake and milecastle 42, northumberland, england

hill terrain plateau cliff grass mountain landscape grassland coast plain highland field ruins meadow pasture ridge prairie agriculture hadrians wall cawfields lake milecastle northumberland england ancient archaeology attraction barbarians blue border boundary britain british cawfields lake clouds countryside defence england english europe famous fortification grass green hadrian hadrian#39aph39#s hadrian#39aph39#s wall hadrians heritage hike hiking hills historic historical history legions miilecastle mile castle 42 northumberland northumbria roman rural stunning tourism tourist trail trees uk visitor