That's great stuff! I've seen LIDAR used on Time Team where it is good at finding old earth-works around castles. It sounds like this was a bit more challenging than the English countryside, but the reward is also greater. In England they are basically filling in details of a well known story. Here they are discovering the story.
I know people at work use LIDAR data but I think it's for landscape type work (eg. mapping old river channels). With one possible exception, I can't see how LIDAR can help in Australian archaeology.
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