Isle of Man · rebuilt from evidence

A map that admits what it knows.

Explore archaeology, recorded discoveries, wrecks and surveys. Every curated entry shows its evidence, confidence and coordinate precision — and withholds sensitive findspots.

Explore the map See how records qualify

Important reset

The inherited 473-row catalogue was withdrawn after audit. Unsupported targeting claims and coordinates are not carried into this curated map. Old URLs either redirect to an exact verified replacement or remain as noindex review notices.

Smaller by design. Stronger by evidence.

Counts describe this curated release, not the retired catalogue.

535curated, source-linked records

515responsibly mapped public positions

20records without public geometry

94distinct source URLs

19 sensitive locations are deliberately withheld; 1 further record has no defensible public survey footprint.

Start with the evidence

A cross-section of heritage records, discoveries, wrecks and survey work. A heritage record is not necessarily publicly accessible.

Record 209 · Heritage record · Date not established

1860s OS Map Anomalies (tumuli & cairns)

1860s OS Map Anomalies (tumuli & cairns) is an entry in the archived Manx Treasure Map catalogue. The inherited identity, date and descriptive claims have not yet been confirmed against an authoritative heritage or wreck record.

Interpreted Approximate area · radius 750 m

Evidence & precision

Record 169 · Recorded discovery · Date not established

2021 Viking Hoards (South IoM)

2021 Viking Hoards (South IoM) is an entry in the archived Manx Treasure Map catalogue. The inherited identity, date and descriptive claims have not yet been confirmed against an authoritative heritage or wreck record.

Interpreted Approximate area · radius 1 km

Evidence & precision

Record 157 · Recorded wreck · Shipwreck

1787 Herring Fleet Disaster Zone

1787 Herring Fleet Disaster Zone is an entry in the archived Manx Treasure Map catalogue. The inherited identity, date and descriptive claims have not yet been confirmed against an authoritative heritage or wreck record.

Interpreted Approximate area · radius 5 km

Evidence & precision

Record 77 · GPR survey · Modern archaeological survey

Archallagan Cairns GPR Survey

The Round Mounds project used GPR at the Archallagan cairns in September 2016.

Confirmed Approximate area · radius 300 m

Evidence & precision

Record 55 · Recorded wreck · 19th century

Afton

Afton is an IOMHER-recorded maritime casualty dated 18 October 1896.

Confirmed Approximate area · radius 300 m

Evidence & precision

Record 239 · Heritage record · Date not established

Andreas Airfield (WW2 RAF)

Andreas Airfield (WW2 RAF) is an entry in the archived Manx Treasure Map catalogue. The inherited identity, date and descriptive claims have not yet been confirmed against an authoritative heritage or wreck record.

Interpreted Approximate area · radius 750 m

Evidence & precision

Ground-penetrating radar

Yes — it has been used here.

We found 9 curated records involving GPR. The research page separates archaeological work from planning, engineering and geology, and separates GPR from magnetometry, resistance and LiDAR.

Read the survey evidence

Before fieldwork

A pin is not permission.

Landowner permission does not replace statutory consent or an archaeological excavation licence. Reporting after a find is a separate duty again.

Read the official-source guide