Castlestrange stone, Co Roscommon. / This beautiful egg-shaped stone, similar in material (granite) and style ("La Tène" curvilinear) to the phallic one at Turoe in county Galway, lies beside the avenue in derelict Castlestrange Demesne (private estate), just over 6 km SW of Roscommon. Sixty cms high and 90 cms long it is decorated all over with a continuous swirling pattern which is engraved rather than carved in relief like the Turoe stone not so far away in county Galway.