The River Dibb is located in North Yorkshire

North Yorkshire

North Yorkshire is a non-metropolitan or shire county located in the Yorkshire and the Humber region of England, and a ceremonial county primarily in that region but partly in North East England. Created in 1974 by the Local Government Act 1972 it covers an area of , making it the largest...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. It is a tributary of the River Wharfe

River Wharfe

The River Wharfe is a river in Yorkshire, England. For much of its length it is the county boundary between West Yorkshire and North Yorkshire. The name Wharfe is Celtic and means "twisting, winding".The valley of the River Wharfe is known as Wharfedale...

. The Grimwith Reservoir

Grimwith Reservoir

Grimwith Reservoir is located in the Yorkshire Dales in North Yorkshire, England. It is accessed from the B6265 road east of Hebden and west of Pateley Bridge...

 is on the River Dibb at a point some 2½ miles from Appletreewick

Appletreewick

Appletreewick is a small village and civil parish in the Craven district of North Yorkshire, England; situated north-east of Skipton. The local travel links are located from the village to Skipton railway station and from Leeds Bradford International Airport...

. The name is possibly derived from the Olde English dib, a dialectical form of dip meaning hollow and recorded in local 13th century records as Dybbe, a now lost hamlet near Burnsall

Course

The river starts from the south side of Grimwith Reservoir and flows south west through Burnett Fold Nook and then south before returning south west to pass under the B6265 at Dibble's Bridge. At this point, Ordnance Survey maps show the river also carrying the name of Barben Beck. It follows a mostly southerly course through Rough Close Wood and Barnscar Plantation to Rookcroft Wood. It turns west through Sprinsgide Wood and then south west again past Hartlington Hall and under Hartlington Bridge before joining the River Wharfe

River Wharfe

The River Wharfe is a river in Yorkshire, England. For much of its length it is the county boundary between West Yorkshire and North Yorkshire. The name Wharfe is Celtic and means "twisting, winding".The valley of the River Wharfe is known as Wharfedale...

.http://www.ordnancesurvey.co.uk/oswebsite/opendata/viewer/

Grimwith Reservoir

Grimwith Reservoir

Grimwith Reservoir

Grimwith Reservoir is located in the Yorkshire Dales in North Yorkshire, England. It is accessed from the B6265 road east of Hebden and west of Pateley Bridge...

, the source of the River Dibb, has a surface area of 1.47 square kilometre (0.567570173131027 sq mi) and holds 21772000 cubic metres (4,789,170,474 imp gal) of water making it Yorkshire's largest reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

. The original reservoir was built in 1864 by the Bradford Corporation, the Local Authority for the city of Bradford

Bradford

Bradford lies at the heart of the City of Bradford, a metropolitan borough of West Yorkshire, in Northern England. It is situated in the foothills of the Pennines, west of Leeds, and northwest of Wakefield. Bradford became a municipal borough in 1847, and received its charter as a city in 1897...

, approximately 300 metres (984.3 ft) above sea level in Wharfedale

Wharfedale

Wharfedale is one of the Yorkshire Dales in England. It is the valley of the River Wharfe. Towns and villages in Wharfedale include Buckden, Kettlewell, Conistone, Grassington, Hebden, Ilkley, Burley-in-Wharfedale, Otley, Pool-in-Wharfedale, Arthington, Collingham, and Wetherby...

. Following an agreement made in 1970 the size of the reservoir was increased by seven times and the water level was raised by 20 metres (65.6 ft), with work being completed in 1983. The reservoir outlet has been the site of a renewable energy project that saw the installation of a small turbine that generates 140 MWh of electricity.