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Scheduled monument

Two entrance graves, a prehistoric field system, and Civil War fieldworks and blockhouse on Innisidgen Hill and Helvear Down, St Mary's

Geographical area

About this entity

Fact links
CURIE scheduled-monument:1013271 no fact link
Prefix scheduled-monument Facts about Prefix
Reference 1013271 Facts about Reference
Name Two entrance graves, a prehistoric field system, and Civil War fieldworks and blockhouse on Innisidgen Hill and Helvear Down, St Mary's Facts about Name
Quality Authoritative: We have some data from the authoritative source no fact link
Dataset Scheduled monument no fact link
Organisation Historic England no fact link
Start date 1976-10-07 Facts about Start date
End date Facts about End date
Entry date 1998-11-16 Facts about Entry date
Typology geography no fact link
Geometry MULTIPOLYGON (((-6.293064 49.935314, -6.293405 49.935325, -6.293574 49.935338, -6.29365 49.935306, -6.293676 49.935276, -6.293685 49.935243, -6.293679 49.935218, -6.293647 49.935181, -6.293579 49.935152, -6.29317 49.93513, -6.293022 49.935107, -6.292276 49.934623, -6.292185 49.93458, -6.29206 49.934534, -6.291912 49.934494, -6.291726 49.934463, -6.291599 49.934453, -6.291324 49.93445, -6.291138 49.934429, -6.290974 49.934395, -6.290798 49.934339, -6.28986 49.933785, -6.289764 49.93376, -6.289657 49.933709, -6.289583 49.93365, -6.289529 49.933571, -6.288197 49.932752, -6.288132 49.932732, -6.288075 49.932736, -6.288028 49.932757, -6.288 49.932789, -6.287999 49.932826, -6.288023 49.932858, -6.28826 49.933026, -6.288126 49.933103, -6.288107 49.933129, -6.288099 49.933156, -6.288102 49.933185, -6.288138 49.933236, -6.288208 49.933269, -6.288309 49.933275, -6.288375 49.933256, -6.288544 49.933164, -6.288596 49.933186, -6.288793 49.933283, -6.289019 49.933428, -6.28917 49.933555, -6.289241 49.933602, -6.289291 49.933661, -6.289336 49.933753, -6.289379 49.933797, -6.289433 49.933835, -6.28954 49.933881, -6.289743 49.933929, -6.289847 49.933965, -6.289956 49.934016, -6.290053 49.934077, -6.290197 49.93415, -6.2903 49.934232, -6.290375 49.934325, -6.290411 49.934401, -6.290448 49.934539, -6.29049 49.934635, -6.290565 49.934754, -6.290662 49.934867, -6.290803 49.934952, -6.291125 49.935119, -6.291531 49.935308, -6.291587 49.935321, -6.291659 49.935313, -6.291715 49.93528, -6.291649 49.935214, -6.291647 49.935203, -6.291663 49.935178, -6.291702 49.935167, -6.291751 49.935181, -6.291823 49.935254, -6.291886 49.935276, -6.291942 49.935285, -6.293064 49.935314))) Facts about Geometry
Point POINT (-6.291115 49.934527) Facts about Point
Documentation url https://historicengland.org.uk/listing/the-list/list-entry/1013271 Facts about Documentation url

Available Code Snippets: 

{
        "entry-date": "1998-11-16",
        "start-date": "1976-10-07",
        "end-date": "",
        "entity": 13904060,
        "name": "Two entrance graves, a prehistoric field system, and Civil War fieldworks and blockhouse on Innisidgen Hill and Helvear Down, St Mary's",
        "dataset": "scheduled-monument",
        "typology": "geography",
        "reference": "1013271",
        "prefix": "scheduled-monument",
        "organisation-entity": 16,
        "geometry": "MULTIPOLYGON (((-6.293064 49.935314, -6.293405 49.935325, -6.293574 49.935338, -6.29365 49.935306, -6.293676 49.935276, -6.293685 49.935243, -6.293679 49.935218, -6.293647 49.935181, -6.293579 49.935152, -6.29317 49.93513, -6.293022 49.935107, -6.292276 49.934623, -6.292185 49.93458, -6.29206 49.934534, -6.291912 49.934494, -6.291726 49.934463, -6.291599 49.934453, -6.291324 49.93445, -6.291138 49.934429, -6.290974 49.934395, -6.290798 49.934339, -6.28986 49.933785, -6.289764 49.93376, -6.289657 49.933709, -6.289583 49.93365, -6.289529 49.933571, -6.288197 49.932752, -6.288132 49.932732, -6.288075 49.932736, -6.288028 49.932757, -6.288 49.932789, -6.287999 49.932826, -6.288023 49.932858, -6.28826 49.933026, -6.288126 49.933103, -6.288107 49.933129, -6.288099 49.933156, -6.288102 49.933185, -6.288138 49.933236, -6.288208 49.933269, -6.288309 49.933275, -6.288375 49.933256, -6.288544 49.933164, -6.288596 49.933186, -6.288793 49.933283, -6.289019 49.933428, -6.28917 49.933555, -6.289241 49.933602, -6.289291 49.933661, -6.289336 49.933753, -6.289379 49.933797, -6.289433 49.933835, -6.28954 49.933881, -6.289743 49.933929, -6.289847 49.933965, -6.289956 49.934016, -6.290053 49.934077, -6.290197 49.93415, -6.2903 49.934232, -6.290375 49.934325, -6.290411 49.934401, -6.290448 49.934539, -6.29049 49.934635, -6.290565 49.934754, -6.290662 49.934867, -6.290803 49.934952, -6.291125 49.935119, -6.291531 49.935308, -6.291587 49.935321, -6.291659 49.935313, -6.291715 49.93528, -6.291649 49.935214, -6.291647 49.935203, -6.291663 49.935178, -6.291702 49.935167, -6.291751 49.935181, -6.291823 49.935254, -6.291886 49.935276, -6.291942 49.935285, -6.293064 49.935314)))",
        "point": "POINT (-6.291115 49.934527)",
        "quality": "authoritative",
        "documentation-url": "https://historicengland.org.uk/listing/the-list/list-entry/1013271"
    }
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© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on [date]. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

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