Cross-border sites at the English / Welsh border
Since April 1st 1991 the Nature Conservancy Council,
which served Great Britain, evolved into three country agencies
plus the Joint Nature Conservancy Council.
Today the three agencies are Natural England; Scottish Natural
Heritage and the Countryside Council for Wales. This meant
that the sites that straddle the national boundaries were no longer
the responsibility of one organization.
As a consequence CCW does not hold in all cases ‘whole site’
official large scale maps. This is especially the case where a
large proportion of the area of a site lies in England eg Midland
Meres and Mosses Ramsar site and the River Wye SAC, to name but
two. Please apply to Natural England for maps within
Due to different mapping policies in the different agencies, you
will find that the SAC large, scale maps are at a greater scale in
the Welsh sector, than in the English sector for the same site.
However, this is not the case in the older sites designated before
the 1991 split.
In the case of the River Dee SSSI, which was notified after the
split, there are two separate SSSIs split in some places down the
central channel of the river.
However the SAC of the same site and age is a single
A recent policy is that, the responsibility of mapping each of
the international, cross-border sites has been assigned to either
Natural England or Countryside Council for Wales. This is to ensure
that a whole site is mapped in a consistent manner.