Hi Mark,
Groundspeak are currently looking into the problem with Region Selection. For the time being the auto-select version has now been turned off until the bug has been fixed.
I do check the mapping but if I am zoomed in too much I might not see the name of the town/city! As most of the caches have gone into the South Queue I have missed at least one, which I have published in the wrong region.
The cache you mention I have now changed to the correct region.
If you find any others then please drop me an e-mail and I can change them, though I am currently away on holiday so may take a few days to do.
Thanks for bringing this to our attention and I can assure you the problem is currently being worked on.
Regards
Southerntrekker