David; that's good, I was a little concerned someone may have led you to believe you'd get more than that from LiDAR.
Although you've not said exactly where this site is on the island I had a look via Google and one could see some tracks around the place. I assume these are not the tracks in question and that there's no historical aerial photography that could assist?
Yesterday was a washout (literally, bad wx) and although I had time on an airfield I wasn't able to run any magnetometer tests. Did find some Wasp bits in the garage though...
Next week perhaps.
FP.