Home LiDAR map Gwynedd Caernarfon
LiDAR map of Caernarfon
Waystone shows the bare-earth LiDAR of Caernarfon, a community in Gwynedd, at one metre per pixel. The heritage records hold 85 recorded places here: 37 Coflein records, 31 listed buildings, 7 places recorded in Wikidata, 4 scheduled monuments, 3 ancient places (Pleiades). On the LiDAR, most of the ground in the community lies between about 12 m and 57 m above sea level; its highest point is about 67 m. By their register titles, its scheduled monuments include 3 Roman sites and 1 enclosure or other earthwork.
Caernarfon 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 Caernarfon, 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 Caernarfon. 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 Caernarfon 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 85 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
- 9.3 km²
- Recorded places
- 85
- Height (LiDAR)
- Mostly 12–57 m above sea level; highest 67 m
- ONS code
- W04000056
Places with their own page
Scheduled monuments and other designated sites
- Lower Roman FortScheduled monument
- Segontium Roman FortScheduled monument
- Caerlan Tibot Defended EnclosureScheduled monument
- Bryn-Glas Roman Signal StationScheduled monument
- SegontiumAncient place (Pleiades)
- Mithraeum at SegontiumAncient place (Pleiades)
- Segontium: Roman Bath HouseAncient place (Pleiades)
Listed buildings
- Caernarfon Castle
- Caernarfon Harbour Trust Offices
- Royal Welsh Yacht Club
- Church of St Mary
- Church of St Peblig
- Caernarfon War Memorial
- Black Boy Inn
- Days Gone By Antiques
- The Albert Inn
- Capel Pendref
- Castle House
- Caernarfon Royal Town Council Offices
- East Gate, incorporating 3 Hole-in-the-Wall Street
- Caernarfon Royal Town Conservative Club
- Tanybont Arch
- The Barracks
- Ty Sidan
- Promenade Wall
- Capel Engedi
- Drawbridge on S side of Victoria Dock
- Crane at Victoria Dock
- Former warehouse on Balaclava Road
- Arfon Oceaneering
- Pont Seiont
- Milestone on E side of A487
- Former Christchurch
- Former warehouse at Victoria Dock
- Seiont Mill Road bridge
- Stone Bridge over Afon Cadnant
- Summerhouse
and 1 more on the map.
Other recorded places
- Battle of TuthillWikidata place
- St David's Church, CaernarfonCoflein record
- The Eagles Hotel, CaernarfonCoflein record
- Kings Mill Pool, CaernarfonCoflein record
- Unnamed Wreck, River SeiontCoflein record
- Twthill;Tuthill, Battle Site, CaernarfonCoflein record
- Caernarfon Railway StationCoflein record
- Caernarfon Station, Welsh Highland RailwayCoflein record
- Plas Ty CochCoflein record
- Tyddyn PandyCoflein record
- Caernarfon MithraeumWikidata place
- Caernarfon Union Workhouse;Bodfan Workhouse;EryriCoflein record
- The Oval, CaernarfonCoflein record
- Ysgol Syr Hugh Owen, CaernarfonCoflein record
- Caernarfon Swing BridgeCoflein record
- Peblig Brickworks, CaernarfonCoflein record
- Caernarfon RFCWikidata place
- CwellynCoflein record
- Penygelli, CairnCoflein record
- Hen-Dy Crossing, Welsh Highland RailwayCoflein record
Nearest places with their own page
- Castrum Segontium700 m south-west
- Caernarfon Town Walls1.1 km west
- Caernarfon Castle1.1 km 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.
- Ancient places: Pleiades (ISAW/AWMC), CC BY 3.0.
- Coflein, Royal Commission on the Ancient and Historical Monuments of Wales, Open Government Licence.
- Roman inscriptions: LatinNow Project, University of Nottingham, CC BY 4.0.
Last updated 2026-10-16.