This large boulder - likely a glacial erratic - is located on the northern side of the Prince of Wales wood in Kilmartin glen. It is positioned with a prominent view across the landscape to the north. Immediatlely to its west is a small fenced enclosure for livestock purposes.
The rock may have been decorated with up to four possible cup marks, altough these are quite shallow and are difficult to identify to the naked eye.
For more information see: https://canmore.org.uk/site/308127/cnoc-na-h-eilde
https://www.rockart.scot/rock-art-database/?scrapToolsaction=datatools:panel&id=0329641E-BCDC-4FE8-A0A66A5F92883E22