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Sites and Monuments Record · Ireland

Water mill - horizontal-wheeled

Coolnaha South, County Mayo, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Water mill - horizontal-wheeled, Coolnaha South, County Mayo, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1915), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Townland
Coolnaha South
County
Mayo
Country
Ireland
First-edition OS map
Not indicated
Latest-edition OS map
Not indicated
Coordinates
53.80313, -8.76002
SMR number
MA093-072----

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

4 historical maps cover this location, the earliest the 1753 map "Mappa geographica Regni Hiberniae" (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1753 · Mappa geographica Regni Hiberniae (David Rumsey Map Collection, Stanford Libraries)
  • 1790 · Composite: Ireland. (David Rumsey Map Collection, Stanford Libraries)
  • 1869 · Ireland. (David Rumsey Map Collection, Stanford Libraries)
  • 1891 · Ireland 16 (David Rumsey Map Collection, Stanford Libraries)

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This record in the National Monuments Service's Historic Environment Viewer ↗

The National Monuments Service's description

Sited in a natural depression bordered to the E by a flat expanse of boggy ground, now under forestry. At the N edge of the depression is a natural spring, used as a holy well (MA093-014006-). Overlooked to S by a low hillock, and to NW by a hill on top of which is an ecclesiastical enclosure (MA093-014001-).
A horizontal water mill was uncovered during drainage works in 1997 (SMR file). A millstone and eight individual timbers were exposed. One of the timber consisted of a beam (L 2.6m; Wth 0.19m; D 0.28m) with two rectangular mortice holes (L c. 0.2m; Wth c. 0.1m; D c. 0.11m) in one face. Some of the timbers were displaced by the ground works, but three planks remained in situ in the N−S drain. They lay parallel to each other on a NE−SW axis, with a gap of c. 0.25m between each plank. There were several large stones in the vicinity of the planks.
According to local information, the timbers were reburied. The millstone consists of a roughly circular sandstone block (diam. 0.68m; T 0.28m) with a central circular perforation (0.012m). It is now located to W of its find location, adjacent to a pump house and a farm track.

Compiled by: Jane O’Shaughnessy

Date of upload: 30 June 2022

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Sites and Monuments Record data: National Monuments Service, Government of Ireland, licensed under CC BY 4.0. Record text is reproduced unchanged. National Monuments Service, Government of Ireland · CC BY 4.0
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