Roadside monument, south of Ballina, actually really just a cist, but you can see why it’s called a dolmen, here and elsewhere. The blocky capstone must weigh at least 30 tons and sits on top of two sidestones and a backstone, creating a small chamber.
It now resides in its own little enclosure beside a road that leads south-west from Ballina train station, surrounded on its east side by the ugly headquarters of the Road Safety Authority.