The two parallel lines tagged as river banks has been rendered as fill against some arbitrary base line. http://openstreetmap.org/?lat=30.9242&lon=75.8643&zoom=13&layers=0B00FTF and http://openstreetmap.org/?lat=30.92781&lon=75.93121&zoom=15&layers=0B00FTF Is there something wrong in tagging? -- H.S.Rai