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The thing I find unclear is that on the OS map a waterway called the Old Bedford river is fed by sluices at Earith and feeds into the Great River Ouse at Salters Lode. But if you look carefully at the OS map (and at Google Earth) it`s not actually the same waterway. The one which comes from Earith joins the New Bedford river through a sluice near Ouse Bridge Farm. The one which runs into Salters Lock seems to be the Counter Drain (or whatever it`s called) which is also the one which the Forty Foot drain enters via Welches Dam. In fact if you look at the current (May 2009) Google Earth view of the area just south of the sluice into Bedford New river it is in flood, but the counter drain to the North appears to be on the other side of the flood bank, i.e. separate. It never seems to join to the Old Bedford river just south of it. What`s the explanation ? --JustinSmith (talk) 15:49, 22 May 2009 (UTC)