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Sites and Monuments Record · Ireland

Promontory fort - inland

Castletenison Demesne, County Roscommon, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Promontory fort - inland, Castletenison Demesne, County Roscommon, 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
Castletenison Demesne
County
Roscommon
Country
Ireland
First-edition OS map
Not indicated
Latest-edition OS map
Doon Point
Coordinates
54.05922, -8.18200
SMR number
RO003-008----

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 1790 map "Composite: Ireland." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 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)
  • 1922 · Ireland - northern section. (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

On a promontory jutting SE from the W shore of Lough Meelagh (dims. c. 2 km E-W; c. 600m-1 km N-S). The promontory (dims. 100m NW-SE; 40m NE-SW; H 2-3m), which is planted with mature deciduous trees, is separated from the mainland by a dry fosse (L 18m; Wth of top 4-7m; int. D 0.4-1.8m; ext. D 0.7-1.3m) at the isthmus. The fosse is crossed by a 19th-century carriageway which circumscribes the promontory altering its contours by infilling and revetting, and adding drystone walls to either end of the fosse. Rath (RO003-090----) is c. 140m to the SW, and promontory fort (RO003-091----) is c. 160m across the lake to the SE.

Compiled by: Michael Moore

Date of upload: 24 August 2010

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
All Promontory fort - inland in Roscommon All County Roscommon records All Ireland Heritage registers Historical markers (US)National Register of Historic Places (US)
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