CROSSNA, a village, in the parish of ARDCARNE, barony of BOYLE, county of ROSCOMMON, and province of CONNAUGHT, 6 miles (N. E.) from Boyle: the population is returned with the parish. It occupies, with Mount Prospect, the crest of a hill commanding a fine view of the rich lower country around Lough Key; the ridge is of sandstone. The village and neighbourhood are improving in appearance: the pastures, though generally rough, have been subjected to partial irrigation in the lower grounds, and the arable lands produce good crops of oats and potatoes. The superb house and demesne of Rockingham (described in the article on Ardcarne) stands here; and there is a large R. C. chapel in the village.