Editing River Derwent, Derbyshire (section)

==Course==
The River Derwent [[Source (river or stream)|rises]] at Swains Greave ({{convert|590|m}} above sea level) on the eastern flank of [[Bleaklow]], opposite Howden Moors, and some {{convert|6|mi|km}} east of [[Glossop]].<ref name=os /> It flows through the [[Upper Derwent Valley]], and for most of its first {{convert|6|mi}} forms the county boundary between Derbyshire, on its west bank, and [[South Yorkshire]], on the east bank. Some {{convert|4|mi}} into its journey it passes through three consecutive reservoirs: [[Howden Reservoir|Howden]], the highest, [[Derwent Reservoir, Derbyshire|Derwent]] and [[Ladybower Reservoir]]. Derwent Reservoir is named after the now-submerged village of [[Derwent, Derbyshire|Derwent]], which was named after the river. Once past Howden Reservoir, both banks of the river are in Derbyshire, and the river remains in the county to its mouth. Howden Reservoir is also fed by the [[River Westend]], whilst Ladybower Reservoir is also fed by the [[River Ashop]]. The former confluences of the two tributaries with the Derwent are now submerged below the respective reservoirs.<ref name=dbnetrd/><ref name=phil>{{cite book | title = Philip's Navigator Road Atlas Britain | publisher = Philip's | date = 25 May 2005 | isbn = 0-540-08678-9}}</ref>

Further south, the Derwent passes the village of [[Bamford]], where it is joined by the [[River Noe]]. Below this confluence, it flows through [[Hathersage]], [[Grindleford]], [[Calver]] and [[Baslow]], and through the estate of [[Chatsworth House]], before it is joined by the [[River Wye, Derbyshire|River Wye]] at [[Rowsley]]. After passing through [[Darley Dale]], the Derwent reaches [[Matlock, Derbyshire|Matlock]], where, at an oxbow, it collects the [[Bentley Brook]]. It then flows past the villages of [[Matlock Bath]], [[Cromford]], [[Whatstandwell]], and [[Ambergate]], where it is joined by the [[River Amber]].<ref name=phil/>

Below Ambergate, the river flows through the town of [[Belper]] and the villages of [[Milford, Derbyshire|Milford]] and [[Duffield, Derbyshire|Duffield]], where it is joined by the [[River Ecclesbourne]]. It then enters the city of [[Derby]] near [[Darley Abbey]] and flows through the centre of the city. The river ends at [[Derwent Mouth]], between [[Shardlow]] and [[Sawley, Derbyshire|Sawley]], where it joins the [[River Trent]] at a height of {{convert|30|m|ft}} above sea level; a total drop of {{convert|560|m|ft}}.<ref name=os /> Its course meanders somewhat, especially in its lower reaches, adding {{convert|16|mi|km}} to its apparent length of {{convert|50|mi|km}}. Its waters ultimately reach the [[North Sea]] via the [[Humber|Humber Estuary]].<ref name=phil/>