Let's start the blog off with a pretty picture. I did this survey with the Independent Historical Research Group a while back, and it's been one of my favourite surveys, despite it not being Roman. It was initially spotted by someone from the Hastings group as a crop mark on Google Earth, and as IHRG were already working next door at Bardown, they decided to get permission from the landowner. My initial thoughts from the aerial photographs were that we might have a henge, but that doesn't look like that is the case now we have the geophysics results.
As you can see from the magnetometer survey results, there is a double ditched enclosure, but not perfectly circular as you would expect a henge to be. There is a single entrance to the east through both ditch circuits, whereas you would normally expect two from a henge. The ditch circuits disappear to the south and north as the enclosure is built on an east-west ridge, burying these sections under colluvium. The nice strong readings from the ditches are due to charcoal, which was discovered in the fill using an auger. There weren't any finds on the surface, and no coins found with metal detectors, so probably not Roman, so we are going with Iron-age until it is dug. You can see the full survey report here.