river barrow rises
History of the River Barrow. This river rises in the Slieve Bloom mountains north west of the Ridge of Capard, in County Laois and flows in a north easterly direction through mountainous forested land crossing over the Slieve Bloom Way.ere is a river where the waters and backwaters soothe the soul and renew the spirit. Ireland's second longest navigable river, the Barrow, is noted for the beauty and variety of its landscape, the fascination of its historic hinterland and the picturesque charm of its riverside towns.