Knowing of my interest in Roman history my friend Tellytubby sent me a link about long-lost Roman roads discovered in the UK using the latest hi tech available at present.
It reminded me of my conversation with David Hopewell after reading his book "Roman roads in North West Wales" In the book it stated that the exact route of the Roman Road from Aber westwards to Pentir hasn't been proven yet.
I had been lead to believe that the Roman Road went through the fields behind Tyn Hendre and have passed that way thousands of times on my way to work in Bangor. The slip road from the A55 to Tal Y Bont looks directly on to the fields but I could never see any evidence of a Roman Road there. That was until one day following a light coating of snow I could see the definite terracing of a road going right through the field.
When I discussed this with David Hopewell he advised me that they knew about this but hadn't had the conclusive proof yet and then explained Lidar Data to me. Using light detection and ranging (Lidar) technology the precision technology can detect differences in the height of the land of as little as 5cm, making it ideal for detecting hidden structures buried under the soil.
These recent discoveries could just be a drop in the ocean of finds waiting to be unearthed, with more than 11 terabytes of Lidar surveys waiting to be analysed and may be able to help with finding the undiscovered rods in N Wales
http://dailym.ai/1Jk2yml