Description

DUCATHAIR INTROSMR No.: GA119-001----

Monument Type: Promontory fort - coastal

On a sheer cliff-top headland on SW side of Inis Mór. This National Monument is known locally as Dún Dúcathair. It consists of an irregular boulder-strewn area of limestone pavement (110m by 80m max.) defined to landward (NE) by a massive drystone rampart (L c. 73m, Wth 7.2m, H 3.7m). Both the inner face of the rampart, with three terraces connected by steps, and the buttressed outer face are the result of 19th-C restoration. Traces of an entrance (Wth 2.2m) survive at E end but Westropp, citing Petrie in 1821, states that it 'had a perfect entrance to the west, destroyed ... by a great cliff-fall before 1839' (1914, 333-4). Outside the rampart is a dense band of chevaux-de-frise (Wth 55m max.) and within it are two groups of houses (GA119-001001-, GA119-002----). (O'Flanagan 1927a, Vol. 3, 242-50; Westropp 1914, 333-4; Robinson 1986, 37-40)

Images

Front perspective view 1 of Dúcathair Stone Fort Front perspective view 2 of Dúcathair Stone Fort Rear perspective view 1 of Dúcathair Stone Fort Rear perspective view 2 of Dúcathair Stone Fort Front elevation view of Dúcathair Stone Fort Rear elevation view of Dúcathair Stone Fort Plan view of Dúcathair Stone Fort Perspective view 1 of Dúcathair Stone Fort point cloud Perspective view 2 of Dúcathair Stone Fort point cloud Perspective view 2 of Dúcathair Stone Fort point cloud Perspective view 3 of Dúcathair Stone Fort point cloud Plan view of Dúcathair Stone Fort point cloud

Video

3D Model 1

3D Model 2

The 3D point cloud model displayed has been decimated to under 1% of the full dataset to enable on-line viewing.

Location

Licensing

All 3D models, videos and images of this cultural heritage object/site are the copyright of the Discovery Programme and can be licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

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High Resolution Data
For access and reuse of the high resolution 3D survey data used to derive the online models, images and videos please contact This email address is being protected from spambots. You need JavaScript enabled to view it..

DUCATHAIR PNT LNK

Technical Details

3D Capture Method: Terrestrial laser scanning (TLS)

3D Capture Description: Phase based terrestrial laser scanning using a Faro Focus 120 laser scanner. The instrument quotes the following specification:

  • Distance accuracy up to ±2mm.
  • Range from 0.6m up to 120m.
  • Measurement rate up to 976,000 points/sec.
  • Intensity & RGB. Integrated colour camera.
  • Photorealistic 3D colour scans with up to 70 megapixels.
  • Parallax-free colour overlay.

Laser scans geo-referenced using RTK GPS with VRSnow corrections

Data Processing Software

Processing of point cloud data: Faro Scene & Pointools
Meshing of data: Geomagic Studio 2012
3D Modelling & Texturing: Autodesk Mudbox, Mari, 3D Studio Max

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