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TerraTraceTerraTraceISOK · EPSG:2180
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01 / The evidenceLook before you classify

What survives
in the ground.

A grodzisko is the surviving trace of a fortified settlement: a bank, ditch or enclosure shaped into the land. Vegetation can hide it from view. Bare-earth LiDAR makes its relief legible again.

These are registered reference sites, shown as terrain evidence. They are not model detections or field validation.

Embanked circuit of the registered Czermno stronghold in a LiDAR terrain visualisation
01 / CzermnoStronghold and bailey · LiDAR terrain visualisationLattgalle / Wikimedia Commons / CC0
Aerial context for the circular registered stronghold at Grzybowo
02 / GrzybowoRegistered stronghold · aerial contextMarsilar / Wikimedia Commons / CC0

Exact locations are shown only for sites already in the Polish monuments register. Unregistered candidate coordinates are withheld.

Next02 / The method