Osse Stream
The Osse Stream or Osse Ditch, otherwise known as the Appleton Brook, is a small stream in the Vale of White Horse in historic Berkshire, since 1974 in Oxfordshire. The stream is a tributary of the River Ock, with its confluence near Marcham Mill. The stream rises at a pond in Cumnor, flowing past Besselsleigh, Appleton, Fyfield, Frilford and Marcham. Name. The hydronym "Osse" appears to be derived from the Old English word "Wase", meaning 'mud'.