LiDAR images of Anglesey

LiDAR, short for light detection and ranging, is a remote sensing technology that uses light in the form of a pulsed laser to measure distance to a target. A LiDAR sensor fires off beams of laser light and then measures how long it takes for the light to return to the sensor. Lidar is a brilliant way to scan and visualise landscapes, operating at a variety of scales, the 25cm, 50cm and 1m scales are publicly available on the internet for example which allows scrolling between a Google earth satellite image and the Lidar image. Slightly clearer images are provided on this website

availability of LiDAR images across Anglesey
enlargement of above showing the swarm of drumlins across the northern part of Anglesey. Drumlins are low hills of glacial sediments, oval in plan, with confused drainage patterns between them. This creates a diverse pattern of soils, the better drained soils on the drumlins used for agriculture both grazing and arable while there are boggy areas between.
Din Silwy – a flat topped hill formed by a bed of limestone and utilised as a hill fort by upturning clints [natural blocks of limestone]
Lleiniog castle, an early Norman motte & bailey castle constructed from the Irish Sea Till

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