LiDAR Lens Anglesey

LiDAR Lens Ynys Môn puts the whole of Anglesey in 1 m LiDAR into a fast, free viewer that works as well on a phone in a field as on a desktop. The Welsh Government's LiDAR covers essentially the entire island, and every tile is stored with the lens, so it loads quickly wherever you are. Bryn Celli Ddu sits in its landscape, Barclodiad y Gawres crowns its headland, the walls and streets of Caergybi (Holyhead) show through, and the old hut circles and fields on Mynydd Tŵr (Holyhead Mountain) leap out of the hillside. Place names are Welsh first, with English in brackets, and all 147 of Cadw's scheduled monuments on the island are marked and linked. There is no login, no account and no adverts.

How it works

Pan and zoom across the island, or use Go to box to jump to a place or grid reference. On a phone, Use my location puts you on the map where you are standing, which is handy in the field. The 146 place names come from the Welsh Language Commissioner's list of standardised Welsh place names, such as Biwmares (Beaumaris) and Llangefni. Click a scheduled monument to open its Cadw report, and follow the links out to Archwilio and Coflein for the wider historic environment record.

Fair use

No historic environment record data is copied into the lens; it links to Archwilio and Coflein, which remain the places to look things up. Please respect landowners, and remember that scheduled monuments are protected by law. Seeing something in the LiDAR is not permission to go and look.

Credits

• LiDAR: Welsh Government 1 m DTM (DataMapWales), Open Government Licence v3
• Place names: Welsh Language Commissioner, list of standardised Welsh place names
• Scheduled monuments: Cadw, Open Government Licence
• Links: Archwilio and Coflein (RCAHMW)

For England and Wales as a whole, and the other lenses, see lidarlens.sarsen.org. The code is on GitHub. Comments and anything interesting you spot are welcome below.