ALS/LiDAR derived hillshade map with 3 magnetic gradiometry study areas 
Magnetic gradiometry on study area 1 
Mapping of anomalies on study area 1 which show the outline of levelled ramparts 
Magnetic gradiometry on study area 2 
Mapping of anomalies on study area 2 which show the outline of levelled ramparts 
Magnetic gradiometry on study area 3 
The rampart structures in area 3 generate weaker anomalies and suggest their low state of preservation 
The capturing of magnetic anomalies caused by levelled rampart constructions in crucial points
The geophysical survey in Demblin was commissioned by the Jagiellonian University and its aim was to gather additional data about earthwork features visible in the ALS/LiDAR data. This would in turn allow a more precise valuation of the size of the Medieval stronghold – possibly the largest one in Poland, counting over 10 hectares.