Known as Moor Well, a name recorded on the 1933 edition of the Ordnance Survey six-inch map, this small feature occupies flat pastureland roughly forty metres east of the Clarin River. It is a modest structure, roughly subcircular in shape, measuring less than a metre across and the same in depth, defined by a low drystone wall of three to four courses. Drystone construction uses no mortar, the stones relying on careful stacking and their own weight to hold form. A small gap on the western side once served as the point of access. When last inspected, the well was dry.

Athenry itself retains much of its medieval street plan and walls, and features of this kind, small functional wells serving a town or its surrounding land, would once have been ordinary necessities rather than curiosities. The name Moor Well suggests an association with open, boggy ground, a reminder that the flat pastureland around the Clarin River would have had a quite different character in earlier centuries. The well sits within a townscape that has accumulated layers of use over many hundreds of years, and a separate spa well, a term generally referring to a spring with mineral-rich water once considered to have health-giving properties, lies roughly 168 metres to the north-north-east, suggesting this part of Athenry had more than one recognised water source within a relatively small area.