Home LiDAR map Gwynedd Llandygai
LiDAR map of Llandygai
Waystone shows the bare-earth LiDAR of Llandygai (Llandygái), a community in Gwynedd, at one metre per pixel. The heritage records hold 132 recorded places here: 75 Coflein records, 33 listed buildings, 13 scheduled monuments, 11 places recorded in Wikidata. On the LiDAR, most of the ground in the community lies between about 42 m and 600 m above sea level; its highest point is about 997 m. By their register titles, its scheduled monuments include 3 industrial sites, 1 barrow or cairn, 1 settlement and 1 henge or standing stone.
Llandygai on the LiDAR. Bare-earth LiDAR, drawn in your browser by the RVT toolbox (the Relief Visualization Toolbox, ZRC SAZU). It opens on Combined VAT; the panel holds all seventeen of its methods, each with its settings. LiDAR: Natural Resources Wales and Welsh Government, 1 m DTM, Open Government Licence. More about this map
The Ordnance Survey six-inch map of Llandygai, 1888–1913. The Ordnance Survey’s six-inch-to-the-mile map, second edition, surveyed between 1888 and 1913 and held by the National Library of Scotland, laid over today’s map with the paper colour removed, so the field boundaries, place names and antiquities the surveyors drew sit on the ground. More about this map
Roman roads near Llandygai. The Roman road network compiled by the Roman Roads Research Association (Digital Britannia), with each road’s grade of evidence, and the Roman forts, camps and towns along them. More about this map
See Llandygai with everything Waystone has
The full map lays the LiDAR under the Ordnance Survey's six-inch maps of 1843–1913, the Roman road network and the 132 recorded places in the community, with search, the sun dial, the ground probe and the cross-section tool, for all of England and Wales. Free, with nothing to install.
- County
- Gwynedd, Wales
- Area
- 33.8 km²
- Recorded places
- 132
- Height (LiDAR)
- Mostly 42–600 m above sea level; highest 997 m
- ONS code
- W04000073
Places with their own page
Scheduled monuments and other designated sites
- Caer Pencraig FortScheduled monument
- Pen Dinas CampScheduled monument
- Sling Burial ChamberScheduled monument
- Carnedd Howel Round CairnScheduled monument
- Enclosed Hut Circle Settlement at Cororion RoughScheduled monument
- Parc Gelli Hut Group and Ancient FieldsScheduled monument
- Nant Ffrancon Anti-invasion DefencesScheduled monument
- Henge Monument and CursusScheduled monument
- Gerlan Hut GroupScheduled monument
- Cegin Viaduct (Penrhyn Railroad)Scheduled monument
- Penrhyn Quarry: relict areas, quarry hospital and underground levelsScheduled monument
- Penrhyn Slate Quarry RailroadScheduled monument
- Penrhyn Quarry RailwayScheduled monument
Listed buildings
- Penrhyn Castle
- Water Wheel House between slab mills at Felin
- Pont Penrhyn
- Dam
- Eastern Slab Mill at Felin Fawr Slate Works
- New Dock
- Wyatt Memorial at the Church of St Tegai
- Glasinfryn Viaduct
- Church of St Tegai
- Lon-Isaf Gate
- Western Slab Mill at Felin Fawr Slate Works
- Capel Shiloh
- Neuadd Talgai
- Pont Marchogian
- Maes-y-Gerddi
- Former Locomotive Shed
- Quarry Office
- Ysgol Llandygai & School House
- Weigh House at Lon-Isaf Gate
- Slate Direction Indicators
- Pont y Ceunant
- Railway Viaduct
- Railway Viaduct
- 'Old Coach House' at Maes-Caradoc
- Walling and Depots
- Pont Coetmor
- Walls
- Kitchen garden wall
- Pont Ogwen
- Pont Tal-y-bont
and 3 more on the map.
Other recorded places
- Avro Anson I Lt184Coflein record
- Avro Anson I Lt116Coflein record
- Penrhyn Park ChapelCoflein record
- Nant Ffrancon Anti-Invasion DefencesCoflein record
- Tregarth Railway StationCoflein record
- Felin-Hen Station;HaltCoflein record
- Concrete Barge, Porth PenrhynCoflein record
- Hermon ChapelCoflein record
- Penrhyn Park Square BarrowsCoflein record
- Llyn IdwalCoflein record
- Concrete Barge, Porth PenrhynCoflein record
- Coety Bach HomesteadCoflein record
- Hut Circle, LlynauCoflein record
- Round Hut, N Bank of The Afon IdwalCoflein record
- Tarinth Hut GroupsCoflein record
Nearest places with their own page
- Penrhyn Quarry Railway3.5 km north
- Dinorwic Quarry4.8 km south
- Dolbadarn Castle5.9 km south-west
Neighbouring parishes
Reading the LiDAR
The terrain model has trees, crops and buildings removed, so banks, ditches, mounds, old field systems and hollow ways show as relief. Many are modern or natural: check the records and the old Ordnance Survey map in the app. How to read a LiDAR map. Scheduled monuments are protected by law; use public rights of way.
Sources
- LiDAR: Natural Resources Wales and Welsh Government, 1 m DTM, Open Government Licence.
- Heights: Waystone, from the same LiDAR sampled about every 12 m inside the boundary; 'most of the ground' is the middle 80% of those heights; metres above Ordnance Datum Newlyn.
- Parish boundary: Office for National Statistics, Parishes and Non Civil Parished Areas (December 2024), Open Government Licence. Contains OS data © Crown copyright and database right 2025.
- Recorded places: the national heritage records (Historic England, Cadw, Coflein and others) as held by Waystone.
- Coflein, Royal Commission on the Ancient and Historical Monuments of Wales, Open Government Licence.
Last updated 2026-10-16.