No it isn't region is present and the results looks like the following:
{cache_name="08 What's got your goat?", visitdate="2012-04-09", country="United Kingdom", cache_id="2772972", region="Southern England", longitude="-1.406650", premium="0", latitude="50.939250", county="Southampton", gccode="GC3DW9M", }
{cache_name="Map Ant Stop", visitdate="2012-04-11", country="United Kingdom", cache_id="2108957", region="Southern England", longitude="-1.396617", premium="0", latitude="50.973417", county="Hampshire", gccode="GC2PJAT", }
The interesting bit is whether Southampton can be accepted as a county/unitary authority or should be treated as being in Hampshire - different cache owners have differing views on that