We are left with all the land in-between the officially named regions so this becomes our 14th or no-name region.. Vines can grow anywhere and small vineyards exist in the ‘no names’ land between the 13 regions.
For example the land between the Barossa Valley and the Clare Valley is favourable and if the owners had water and wished to grow vines, there is no reason at all to suggest they would not do OK. Whether that makes economic sense of course is another argument.
See HERE for details of official South Australian wine regions