u/Sarquin

I've created an updated map showing the distribution of all recorded Souterrains across Ireland. These mainly date to the early medieval period. Definition is included on the map for reference.

The map is populated with a combination of National Monument Service data (Republic of Ireland) and Department for Communities data for Northern Ireland. The map was built using some PowerQuery transformations and then designed in QGIS.

I've taken on helpful feedback from various comments so please do keep them coming as I love making these maps and am keen to keep improving on them.

I've created an updated map showing the distribution of all recorded henges across Ireland.

The map is populated with a combination of National Monument Service data (Republic of Ireland) and Department for Communities data for Northern Ireland. The map was built using some PowerQuery transformations and then designed in QGIS. I appreciate there's not many of these (around 30), but definitely a cluster around the Boyne Valley.

Timber henges haven't been included as far as I can tell in the data, and are obviously much more patchy given how much harder they are to identify.

I have also previously mapped a bunch of other ancient monument types on Reddit, the latest being cairns across Ireland.

I've taken on helpful feedback from various comments so please do keep them coming as I love making these maps and am keen to keep improving on them.

Here are all recorded cairn locations across the whole of Ireland. The map is populated with a combination of National Monument Service data (Republic of Ireland) and Department for Communities data for Northern Ireland. The map was built using some PowerQuery transformations and then designed in QGIS. I've begun playing with the basemap colouring too to create a more historical 'effect'.

The data for Northern Ireland required a bit of filtering so might be a little off. Welcome thoughts on whether there's anything that is missing.

For those not familiar with cairns, at their most basic level they are effectively a pile of stones (that's what the term means). But this is why I've included the filters so you can see the various types and variations. These reflect different periods and purposes which are interesting to see in terms of distributions across Ireland.

Any thoughts about the map or insights would be very welcome.

Here are all recorded ogham stone locations across the whole of Ireland. The map is populated with a combination of National Monument Service data (Republic of Ireland) and Department for Communities data for Northern Ireland. The map was built using some PowerQuery transformations and then designed in QGIS.

The data for Northern Ireland required a bit of filtering so might be a little off. Welcome thoughts on whether there's anything that is missing.

For those not familiar with ogham stones, they are helpfully defined by the National Monument Service as: “upright monoliths or recumbent slabs, onto which ogham script has been incised. Ogham script consists of groups of 1-5 parallel lines and notches cut along the side or across the edge of a stone to represent the sounds of the Irish language. It is usually read up the left angle. The inscription gives a person's name (usually male) and immediate antecedent/s or tribal ancestor. The stones may have functioned as memorials, grave markers or territorial markers and date from the late 4th to the early 8th century AD.”

There were likely many other ogham inscriptions on wood and other perishable materials, but this shows just those on stone. For more background and an interactive map on ogham stone inscriptions, you can see here.

I previously mapped a bunch of other ancient monument types, the latest being stone circles across Ireland.

Any thoughts about the map or insights would be very welcome.