Declan Keenan

The mysterious Rathcoran #hillfort and cairn in West Wicklow. You initially see Rathcoran #hillfort (double ramparts enclosing Baltinglass hill initially in the foreground of the clip); panning to the opened cairn & Neolithic passage tombs; which emerge from the shroud of clouds.

An exciting little #Christmas start-up by my better half - the North Pole Mapping Agency #Npma. For more info, visit the webpage below. We would greatly appreciate any likes or RTs.

Aerial snap of the prehistoric burial cairn on top of Keadeen mountain, overlooking a rich historical landscape.

Aerial snaps of Castleruddery Stone Circle, west Wicklow. #standingstonesunday

An aerial of Boleycarrigeen Stone Circle, west Wicklow. Keadeen mountain in the background. #standingstonesunday

Marching by Brusselstown Ring on the lunch break. #HillfortsWednesday

Delighted to have a paper included in the latest anthology of Irish Chiefs' and Clans Prize papers on aspects of life in Gaelic Ireland. The paper hopefully provides some insights into the relationship between towerhouses and lordship in Mayo (case study). wordwellbooks.com/Clans

A collage of the three High Crosses at Monasterboice.

A re-erected High Cross and Round Tower at Dromiskin, Louth.

The West and East face of the western High Cross at Monasterboice, Louth.

Front and rear of Muiredach's High Cross at Monasterboice, Louth. The site at Monasterboice is altogether amazing. The High Crosses on site are in good condition, and their size is hugely impressive.

An amazing tomb at Roscommon Priory (in spite of the fence); containing a rare representation of #gallowglass soldiers (professional warriors in helmets & mail) along the panel. Last 2 pics show more detail of the warriors (7 with a sword, 1 with gallowglass axe). #tombtuesday

Not quite a standing stone, but a very special boulder worth noting; a few pics of the Castlestrange Stone in Roscommon. Carved and decorated in La Tène fashion. #StandingStoneSunday

An early stone cross at the Upper Lake, Lugduff, Glendalough this morning. Smashing day. ❤ Wicklow.

Delighted to have a paper included in the latest volume of the great History Ireland magazine @HistIreHedge. The paper hopefully provides some insights into Gaelic Ireland; and focuses on a controversial inauguration of a Gaelicised chieftain during the Nine Years War.

The lavabo at Mellifont Abbey, Louth. An indicator that remains, of the size and beauty of Mellifont up to the 16th century. The Abbey grounds are associated with the Treaty of Mellifont.

The towerhouse at Monkstown Castle, Dublin; possibly an important structure in the defence of the borders around the Pale.

A collage showing the front and rear sides of the Duleek High Cross. A depiction of the crucifixion can be seen on the front; and interlace and knotwork on the rear.

The opposite tomb chest panel to below, at St Patrick's on the Rock of Cashel. Among the weepers is St. James the major. #tombtuesday

The stunning Romanesque doorway at Killeshin, Laois with loads of details including decorative panels, faces and interlace.

An elaborate east facing window sitting behind what was formerly the altar at Rosserk Abbey, Mayo.