[OSM-talk] Field boundaries

[Someoneelse]

Ed Avis wrote:
> In the UK, certainly large-scale Ordnance Survey maps show field boundaries.

I suspect that it depends on region, but in my experience the Ordnance 
Survey field boundary data as printed on their Explorer is based on 
actual boundaries some considerable time in the past.  That doesn't mean 
they don't have some other more accurate data in a format not readily 
reproduced on a printed map - maps such as this one:

http://maps.nottinghamshire.gov.uk/NottsCC.InteractiveMapping.Web.Internet/?e=461177&n=360114&mpp=160&layers=SEA.PLA.FP.BR.RB.BOAT&hLayer=&hField=&hValue=
suggest that they might.

In areas where there's complete public access (Open Access Land) or 
substantial public access (lots of paths and roads) or very large fields 
with straight edges it might be feasible to add field boundary data 
without too much effort, but failing that it's "do your own aerial 
survey" or actual surveying on the ground (taking bearings from known 
points).  Maybe that's a job for this winter...