Last weekend I found a major agate deposit, very gorgeous white agate mixed with amethyst.
I'm the maintainer of the Google Earth LANDSAT and ASTER data access. Unofficially, the actual maintainer no longer works with the USGS so I've taken it upon myself to keep the dataset available and up to date.
I've used it to map old quarries and other sites in my area.
New Hampshire has an ongoing project to map stone walls using lidar: http://www.granit.unh.edu/resourcelibrary/specialtopics/ston...
Or was it just a fun thing you were playing around with on a hidden page?
From viewing your map, it seems ~ 70% of England is covered at 1m resolution. Is the other 30% covered by different resolutions or are there some areas not covered at all? Any idea what the Environment Agency's thinking is? (e.g. some areas hit by 2015 Boxing Day floods are not covered at 1m).
(I'm maybe interested in using their data, depending on what the coverage is). Thanks.
Not sure how it differs/overlaps with the National Map viewer.
A commenter above you posted a link to a NOAA data site. I believe that site is a resource for GIS shapefiles: https://coast.noaa.gov/inventory/
Also a technology win in that sites that have had digs still revealed new archaeology with lidar mapping (aeroplane and drone).
Presumably we have enough tech now that the Dr who found the 27 new sites can train an ML algorithm to recognise sites and buildings (and do metrological analysis automatically?)? Is there a generalised image analysis system for aerial imagery that catalogues buildings/roads/ruins/foliage/etc.?
They needed different training data to cope with the different landscapes.
Facebook has faced similar challenges trying to use ML to generate road centerlines for OpenStreetMap.