Between 1850 and 1857 three large reservoirs designed by Thomas Hawksley were built in the area to supply drinking water to Liverpool. This was done by bullding dams and structural embankments and flooding several small valleys to form a chain of reservoirs. These are called the Anglezarke Reservoir, Higher Rivington and Lower Rivington Reservoirs. In addition to these there are two isolated reservoirs in the area called High Bullough and Yarrow.
The photograph above is of the Lower Rivington Reservoir looking West.
The Pilkington's were an old family first recorded as being in the area in 1202. In 1212 Alexander de Pilkington held land in the area 'in thanage, six oxgangs of land valued at 10 shillings'.
A thanage could be a Anglo Saxon term for a manor house and an oxgang is an Old English or Danish term for an old method of land measurement. It averaged around 20 English acres but was based on land fertility and cultivation and as such could be higher or much lower.
This was one of quite a number of small streams that I saw winding their way down the hillside before flowing into one of the reservoirs.