Click here for a Google map of local monuments (incomplete)
There are high-quality images of many of the monuments at this link:
Below the names of monuments on our Google map we are gradually entering links to the NI Sites and Monuments Record database for Co. Armagh, where you can find detailed information and map grid references. Check the 'Related Documents' attachments for field reports from the archaeologists. We will eventually get around to doing the same for monuments in north Louth.
Most of the remains listed here are shown on the various OSNI or OSI maps: Sheets 28, 29 and 36. If you are trying to find a specific monument the Griffiths Valuation maps (mostly 1864 in South Armagh) are more useful because of the large scale and the fact that they have field boundaries (ditches) marked in, which means you can find the exact field. They also show some monuments that have since disappeared under the plough or been incorporated into ditches.
These maps are now free online and an absolutely wonderful resource. Use this link:
Specify Placename Search, enter Townland and County, search and then click on Map View. It can be difficult to navigate on the map when fully zoomed out, so zoom back out a bit, find a place you know and follow the roads to the place you want to examine - almost all the existing road network was there in 1864.