"A parish in the Union and hundred of Ruthin, county of Denbigh, ¼ mile (W) from Ruthin. ..... This parish, of which the hamlet of Street extends into and forms part of the borough of Ruthin, is bounded on the north by the parish of Llanynys, on the south by the parishes of Efenechtyd and Llanfair Dyffryn Clwyd, on the east by Llanrhydd and Ruthin, from which it is separated by the river Clwyd, and on the west by the parish of Clocaenog. The scenery is rich and beautiful, embracing a great variety of surface, numerous little streams tributary to the river Clwyd, well cultivated fields, tracts ornamented with oak, ash, sycamore, elm and larch, and several superior mansions, with views from the higher grounds in every direction of the most picturesque kind." [A Topographical Dictionary of Wales, 1833 & 1849, Samuel Lewis]
The ancient parish of Llanfwrog comprised the townships of Street, Bodyngharad Ucha, Bodyngharad Isa, Cilygroeslwyd, and Penycoed.