[long-winded local info follows] I asked my local county for information on where the county ends at the coast and in the Humber estuary, using the FoI act. Their answer is interesting.
Firstly, the county ends at the mean high water mark of the North sea. This is extended to the low water mark in East Yorkshire by renting the land between the mean high water and the mean low water mark. This land is rented on a long term lease from the Crown Estates. The Crown Estates own about 55% of this foreshore around the UK and rents this out councils and other bodies. [1] The Crown Estates owns the land out to the 12NM limit, beyond that it is regarded as international waters. In the river estuary from Spurn point inland the same situation applies to a point about 580m east of the Humber bridge, ie the county boundary extend to the mean low water mark. In the Humber this is a substantial area of mud flats at low tide, but it does mean that the county boundary does not abut the county boundary of North East Lincolnshire at all and only abuts the county of North Lincolnshire from about the Humber bridge. There are two forts in the Humber, effectively man-made islands. Bull fort is in East Yorkshire, Haile Sand Fort is in Lincolnshire, both beyond the low water mark. I'll digest the detail further then try to adjust the boundaries to fit. I think this enquiry was useful, once I've worked on this I think I'll see if I can get similar details for other counties or maybe other might like to. I expect many counties will be similar, but some are definitely different. [1] http://www.thecrownestate.co.uk/tce_faqs.htm Cheers, Chris _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
