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Problem with ON/165/42/10, ON/165/32/10 and BM/RDN/3/1
A map is shown below. The underlying map is an Ordnance Survey 1:25000 map that has been produced by Bing. On the underlying map, public rights of way (PROW) are indicated by dashed green lines. Solid lines have been superimposed on top of the underlying map (and will usually hide these dashed green lines). A solid red line signifies a footpath, a solid magenta line signfies a bridleway, a solid green line signifies a restricted byway and a solid blue line signifies a byway open to all traffic (BOAT). These solid lines have been produced from data obtained from the Council of Buckinghamshire (BM) and from the Council of Oxfordshire (ON). You can click on a solid line to get more details about that PROW. You can click on the + and - buttons to zoom in/out. Often the boundary line becomes more obvious if you zoom out.
There's a bridleway that crosses the border between Buckinghamshire and Oxfordshire which seems to have a bit that is missing from the datasets provided by the two councils. The bit that is missing runs from about SU771986 (51.68112,-0.88519) to SU773985 (51.68063,-0.88311). I think that means the gap is about 154 metres long.
I've looked at the online map provided by Buckinghamshire and the missing bit is also missing from their online map. I also have looked at the online PDFs of the definitive map that Oxfordshire provide and the relevant PDF says the missing bit is not in Oxfordshire. In Oxfordshire's data, SU771986 is at the junction of ON/165/42/10 and ON/165/32/10. Does ON/165/42 (or ON/165/32) extend further east than SU771986, i.e., to SU773985? Or does the Northern end of Buckinghamshire's BM/RDN/3/1 extend westwards from SU773985 to SU771986?
Action
When I raised this problem with both councils in November 2013,
both councils suggested that the missing bit is in Buckinghamshire.
The person from
Buckinghamshire said "we are now currently investigating this as an anomaly and hope to add it to our Definitive Map in the future".