Hey Thelonius.
I'm still playing about. The environment agency in England has released data on mostly 1m resolution, but some 0.5m and some 0.2m. The higher the resolution the better the picture!
I've not done much with stone circles yet, but the ones I have played about with the stones are clear.
I hadnt realised there was free Scottish data, I am hoping to redo most of my hillfort lidars on here which are 1m from the houseprices.io map. Trouble is each one takes 30 mins minimum, so I may need to learn python and work out how to automate the QGIS process...
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