This revised proposal was continued in a further white paper in March 1970, although this proposed that the councils be unitary authorities which would have no district councils below them. The incoming Conservative government resurrected two-tier local government in a consultative document published in February 1971, again with the same upper-tier boundaries. Some minor changes having been made to the existing boundaries due to special local factors, the Local Government Act 1972 duly created Clwyd as a merger of Flintshire with most of Denbighshire, along with the Edeyrnion Rural District from Merionethshire. The 1970 white paper had introduced the name of Clwyd by reference to the River Clwyd and the Clwydian range of hills; Clwyd was the only new Welsh county which did not take its name from an ancient kingdom.