The Beaghmore Stone Circles

The Beaghmore Stone Circles, not far south of Park and Draperstown, have been described by academics as the "most extensive concentration of stone circles" in Ireland.
https://www.derryjournal.com/heritage-and-retro/heritage/winter-solstice-beaghmore-the-newgrange-of-the-sperrins-just-south-of-the-derrystrabane-district-3502752