RIVAULX, a township in the parish of HELMSLEY, wapentake of RYEDALE, North riding of the county of YORK, 2 miles (W. by N.) from Helmsley, containing 212 inhabitants. An abbey, the first of the Cistercian order in Yorkshire, was founded here in 1131, by Walter L' Espec, in honour of the Blessed Virgin Mary, and at the dissolution possessed a revenue of £351. 14. 6. The venerable ruins of this once sumptuous monastery are situated near the rural, village of liivaulx, in a sequestered valley, through which winds the river Rye, on every side encompassed by. heights crowned with majestic woods. The principal remains, which are those of the church and the refectory, exhibit a mixture of Norman and early English architecture; the choir, in particular, is a beautiful composition still in good preservation; it is one hundred and forty-four feet long, by sixty-three feet wide, the transept one hundred and eighteen feet by thirty-three, and the probable length of the nave one hundred and fifty feet, dimensions which entitled it to rank amongst the largest, as it did with the most magnificent, abbey churches in the kingdom.