Doon Fort

Loughadoon Fort

An oval stone fort occupying almost the whole of a small island in Doon Lough, near Portnoo.

  • 54.8000° N, 8.4500° W
  • Undated
  • Partial
Watch drone film

Overview

Overview

Doon Fort is a cashel built on an island, using the lake as part of its enclosure. It has not been closely dated; the early medieval attribution common to cashels should not be assumed for this one without evidence.[2][1]

View on map
Key facts
Monument typeCashel
PeriodUndated; cashels of this kind are usually early medieval
ConditionPartial
Townland—
CountyDonegal
Landscape—

Solar & Horizon

Solar & horizon

Open Solar Explorer
SESSW
Winter solstice sunriseAzimuth 133.2°
Winter solstice sunsetAzimuth 226.8°
Flat horizon assumed · c. 2500 BC

From the air

From the air

Observation —No observations published yetUnverified

Folklore & placenames

Folklore & placenames

Folklore / Oral tradition

No folklore records are linked to this site yet.

Nearby sites

Landscape

Landscape

  • Recorded site
  • Lost site
  • Aerial observation
  • Landscape
  • Folklore record
List the 4 mapped places

Archaeology

Archaeology

Media

Media

Sources

Sources

  1. [1]
    Historic Environment Viewer (Sites and Monuments Record). National Monuments Service, Department of Housing, Local Government and Heritage.
    Official record · Cited for: National record of the monument's classification and location.
  2. [2]
    Brian Lacy et al.. Archaeological Survey of County Donegal. Donegal County Council, 1983.
    Published archaeology · Cited for: County inventory description.

Record

Editorial review
Awaiting editorial review — treat as provisional
Last updated
11 October 2026
Contributors
Beyond the Bend
Status
Published
Record ID
00000000-0000-4000-8001-000000000007
Report an error
Corrections are read by an editor. Sources help.