Home LiDAR map Cornwall St Mary's
LiDAR map of St Mary's
Waystone shows the bare-earth LiDAR of St Mary's, a parish in Cornwall, at one metre per pixel. The heritage records hold 121 recorded places here: 72 scheduled monuments, 21 listed buildings, 15 features mapped by Historic England from aerial photographs, 13 places recorded in Wikidata. On the LiDAR, most of the ground in the parish lies between about 4 m and 40 m above sea level; its highest point is about 50 m. By their register titles, its scheduled monuments include 18 barrows or cairns, 12 military sites, 7 field systems and 3 henges and standing stones.
St Mary's 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: Environment Agency, 1 m composite DTM, Open Government Licence. More about this map
The Ordnance Survey six-inch map of St Mary's, 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 St Mary's. 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
Aerial archaeology at St Mary's. Historic England’s Aerial Archaeology Mapping: banks, ditches, enclosures and field systems traced by archaeologists from aerial photographs and LiDAR, coloured by period. The records hold 15 aerial survey features in the area. More about this map
See St Mary's 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, Historic England's aerial survey (15 features in the parish) and the 121 recorded places in the parish, 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
- Cornwall, England
- Area
- 6.6 km²
- Recorded places
- 121
- Height (LiDAR)
- Mostly 4–40 m above sea level; highest 50 m
- ONS code
- E04012732
Places with their own page
Scheduled monuments and other designated sites
- The Giant's Castle cliff castle, St Mary'sScheduled monument
- Round cairn with funerary chamber on Buzza Hill, 45m west of the Buzza Tower, St Mary'sScheduled monument
- Two entrance graves, a prehistoric field system, and Civil War fieldworks and blockhouse on Innisidgen Hill and Helvear Down, St Mary'sScheduled monument
- Ennor Castle, Old Town, St Mary'sScheduled monument
- Round cairn 108m NNE of Peninnis Head lighthouse, St Mary'sScheduled monument
- Civil War battery at Kettle and Pans rocks, Peninnis Head, St Mary'sScheduled monument
- Two entrance graves and a platform cairn 90m ESE of Basin Rock, Porth Hellick Down, St Mary'sScheduled monument
- Entrance graves, standing stones, field systems, settlements and post-medieval breastwork, kelp pit and stone pits on Halangy and Carn Morval Downs, St Mary'sScheduled monument
- Late 19th-early 20th century Steval Battery on The Garrison, St Mary'sScheduled monument
- Prehistoric hut circle and Civil War fieldworks on eastern Toll's Hill, St Mary'sScheduled monument
- Prehistoric field system and Civil War fieldworks on south western Carn Morval Down, St Mary'sScheduled monument
- Harry's Walls unfinished 16th century artillery castle and adjacent prehistoric standing stone at Mount Flagon, St Mary'sScheduled monument
- Round cairn 135m north east of Dutchman's Carn, Peninnis Head, St Mary'sScheduled monument
- Round cairn 130m north east of Peninnis Head lighthouse, St Mary'sScheduled monument
- Platform cairn on northern Peninnis Head, 200m ESE of Buzza TowerScheduled monument
- Prehistoric linear boundary 50m ENE of Mount Todden Battery, St Mary'sScheduled monument
- Round cairn 137m east of Helvear Farm, St Mary'sScheduled monument
- Round cairn on Helvear Down, 300m NNE of Higher Trenoweth Farm, St Mary'sScheduled monument
- Platform cairn on Carn Morval Down, 235m north of Isles of Scilly Golf Course club house, St Mary'sScheduled monument
- Civil War battery and associated platform at Carn Morval Point, St Mary'sScheduled monument
- Two kerbed platform cairns on Salakee Down, 40m north west of Church Porth, St Mary'sScheduled monument
- Entrance grave on Salakee Down, 160m north west of Church Porth, St Mary'sScheduled monument
- Two entrance graves and a platform cairn 95m NNW of Pig Rock on north eastern Salakee Down, St Mary'sScheduled monument
- Two entrance graves 220m ENE of Salakee Farm, St Mary'sScheduled monument
- Platform cairn 195m north east of Salakee Farm, St Mary'sScheduled monument
- Round cairn 155m NNE of Water Rocks, Normandy Down, St Mary'sScheduled monument
- Civil War breastwork ESE of Dick's Carn, St Mary'sScheduled monument
- Entrance grave 23m west of Old Rock, Porth Hellick Down, St Mary'sScheduled monument
- Entrance grave 47m north west of Old Rock, Porth Hellick Down, St Mary'sScheduled monument
- Entrance grave 80m SSE of Basin Rock, Porth Hellick Down, St Mary'sScheduled monument
- Entrance grave 105m south east of Basin Rock, Porth Hellick, St Mary'sScheduled monument
- Prehistoric entrance grave and regular field system on north western Porth Hellick Down, St Mary'sScheduled monument
- Platform cairn 100m NNW of Water Rocks, Normandy Down, St Mary'sScheduled monument
- Entrance grave 135m NNE of Water Rocks, Normandy Down, St Mary'sScheduled monument
- Civil War breastwork and two prehistoric stone hut circles at Little Porth, St Mary'sScheduled monument
- The Long Rock prehistoric standing stone on Long Rock Down, St Mary'sScheduled monument
- Platform cairn on Carn Morval Down, 275m NNW of Isles of Scilly Golf Course club house, St Mary'sScheduled monument
- Prehistoric linear boundary south east of Horse Rock on Porth Hellick Down, St Mary'sScheduled monument
- Prehistoric field system east of Peninnis Head lighthouse, St Mary'sScheduled monument
- Prehistoric field system on eastern Peninnis Head, St Mary'sScheduled monument
- Two round cairns 85m east of Dutchman's Carn, Peninnis Head, St Mary'sScheduled monument
- Hut circle settlement and Civil War breastwork north east of Porth Minick, St Mary'sScheduled monument
- Prehistoric field system on the northern slope of Mount Todden, St Mary'sScheduled monument
- Prehistoric field system and stone setting, Civil War fieldworks, post medieval kelp pits and quay on Toll's Island, St Mary'sScheduled monument
- Prehistoric linear boundary and Civil War fieldworks on north western Toll's Hill, St Mary'sScheduled monument
- Prehistoric settlement, Romano-British cist cemetery and Civil War battery in northern Toll's Porth, St Mary'sScheduled monument
- Prehistoric linear boundary, cairn and post-medieval building on Taylor's Island, St Mary'sScheduled monument
- Prehistoric linear boundaries, house platform and cairn on south western Peninnis Head, St Mary'sScheduled monument
- Prehistoric house platform and boundary north east of Carn Leh, St Mary'sScheduled monument
- World War II pillbox 250m south east of Carn Gwavel Farm, St Mary'sScheduled monument
- World War II pillbox and Civil War battery at Tolman Point, St Mary'sScheduled monument
- World War II pillbox west of Porth Hellick, 90m north of Drum Rock, St Mary'sScheduled monument
- World War II pillbox between Thomas' Porth and Porthaloo, St Mary'sScheduled monument
- Post-medieval breastwork, curtain wall and associated defensive structures on the periphery of The Garrison, St Mary'sScheduled monument
- Iron Age to Romano-British fogou on northern Peninnis Head, 170m south of Carn Gwavel Farm, St Mary'sScheduled monument
- Civil War battery 80m SSE of Dutchman's Carn, Peninnis Head, St Mary'sScheduled monument
- Civil War battery at Carn Leh, St Mary'sScheduled monument
- Civil War battery at Tolman Carns, St Mary'sScheduled monument
- Civil War battery on northern slope of Mount Todden Down, St Mary'sScheduled monument
- Civil War battery on Helvear Hill, St Mary'sScheduled monument
Listed buildings
- Star Castle Hotel
- The Old Church of St Mary
- Outer Walls and Gateway
- Powder Magazine and Blast Walls
- Former Wesleyan Methodist Chapel
- Church of St Mary
- Church of St Mary's
- Crows Nest the Cabin the Forecastle
- Newman House
- Coastguard's Look Out Tower
- Monument to Charles Budd
- Bellrock Hotel
- Rattenbury memorial
- Lead Cistern
- Wall and Gateway
- Custom House Strand House
- Simpson's Shop
- Old Town War Memorial
- Gateway
- Headstone
- Headstone
Other recorded places
- St Mary'sWikidata place
- Isles of ScillyWikidata place
- Lower MoorsWikidata place
- Halangy Down transmitting stationWikidata place
- Holy ValeWikidata place
- Rocky HillWikidata place
- MaypoleWikidata place
- NormandyWikidata place
- LongstoneWikidata place
- TrenowethWikidata place
Nearest places with their own page
- Harry's Walls650 m south-west
- Star Castle1.6 km south-west
- Giant's Castle, St Mary's1.8 km south-east
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: Environment Agency, 1 m composite 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.
- © Historic England 2026, Aerial Archaeology Mapping, Open Government Licence. Contains OS data © Crown copyright and database right 2026.
Last updated 2026-10-16.