Detector Maps
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High-resolution bare-earth LiDAR — multi-angle hillshade and slope renders — strips back the vegetation so earthworks, platforms, old field boundaries and trackways stand out across the ground.
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LiDAR measures the bare earth beneath crops and trees. Rendered as hillshade and slope, the faint earthworks — platforms, banks, hollow-ways and lost field systems — jump out, even where there's nothing to see at ground level.
1-metre LiDAR reads subtle earthworks.
Custom multi-angle hillshade catches features one light misses.
Slope shading highlights banks and ditches.
Match an earthwork to an old map to understand it.

Custom multi-directional light.

Banks and ditches stand out.

Bare-earth relief.
Where available it’s 1-metre bare-earth — fine enough to read platforms, banks, hollow-ways and lost field boundaries.
A single light direction hides features that run parallel to it. Multi-angle and slope renders reveal earthworks a standard hillshade misses.
Earthworks and lost landscape features — old buildings, trackways and field systems — that point at where people were active.
Across Britain wherever public LiDAR coverage exists — coverage keeps growing.
Recorded findsDetect near recorded find-spots.Explore →
Period heatmapsRoman to post-medieval density.Explore →
Ancient sitesHillforts, monuments & roads.Explore →
Historical mapsOS maps back to the 1880s.Explore →
NDVI crop-marksCrops reveal what's below.Explore →
Permission & accessKnow whose land it is.Explore →Every find-spot, every layer, all of Britain — on one map you can take to the field.

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