Located on the edge of the
South Wales Coalfield this area was sparsely populated with livestock husbandry being the main occupation. Farmers in their remote farmhouses on the windswept pastures might dig themselves some bucketfuls of coal for their hearth. Things began to change with the development of the iron industry, the start of the
Industrial Revolution. In 1752, a 99-year lease was granted for a parcel of land in the Rhymney Valley which gave the lessees the right to mine coal and iron ore. Other such transactions followed, pit shafts were dug and the coal industry developed. By the beginning of the twentieth century, there were forty coalmines in the valley. One of the pits sunk in the late nineteenth century was the Elliot Colliery. At its peak before World War I, it was producing over a million tons of coal a year and employing nearly three thousand people. The coal eventually became depleted and the colliery closed in 1967. Most of the site was cleared but the East Winding House survives and is now a
Grade II listed building, and a museum of the coal industry in the area has been opened on the site. All the pits in the valley were closed by the end of the twentieth century; the spoil heaps were removed and the area was landscaped so that it is not now apparent that the valley ever had an industrial past. In 2008, as a result of representations from different communities in the borough, a draft plan was put forward proposing various changes to the borders between communities. ==Governance==