Calf Hey Reservoir is a reservoir in

Haslingden Grane Haslingden Grane is the glaciated upper portion of the valley of the River Ogden, which lies west of Haslingden and is in the north east section of the West Pennine Moors. To the north is Oswaldtwistle Moor, and to the south Musbury Heights. It wa ...

, close to the town of

Haslingden Haslingden is a town in Rossendale, Lancashire, England. It is north of Manchester. The name means 'valley of the hazels' or 'valley growing with hazels'. At the time of the 2011 census the town (including Helmshore) had a population of 15,96 ...

, in the

Borough of Rossendale Rossendale () is a district with borough status in Lancashire, England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and ...

, England. It was the first of three reservoirs in the valley, the others being Ogden Reservoir and Holden Wood Reservoir. Not to be confused with the upper of the two

Ogden Reservoirs Upper and Lower Ogden Reservoirs are half a mile to the west of the village of Barley, in the Borough of Pendle, England. They supply drinking water to the town of Nelson. Three forests covering more than can be found close to the reservoirs. ...

11 miles to the north, near Nelson.

References

{{authority control Drinking water reservoirs in England Reservoirs in Lancashire Geography of the Borough of Rossendale