When the rains come the streams fill, and we become suddenly aware of the network of waterways that surround us. Normally just half visible, these then threaten to flood the roads and menace our houses. The most fundamental feature of the landscape, brooks and rivers have been flowing in their current courses for over ten thousand years since the last ice age, and have had a dominant influence on our history, as water sources, barriers and boundaries, and also as liquid energy.

The meanings of river names are remarkably impenetrable: unlike most village names many seem to be pre-Saxon, and some even hint at a pre-Celtic language. Kenneth Cameron[i] had a hard time explaining Amber, Dove, Wye, Noe, Lathkill, Derwent and Ecclesbourne (this one of the few ‘bournes’ in the county). Of course there are several River Derwents in England, and it appears to mean something like ‘oak river’. But when does a brook become upgraded to river? And when does the tiny sic (pronounced ‘sitch’) gain the status of a brook?

Due to their permanence, rivers have historically been used as convenient boundary markers, as with the Dove as the Staffordshire border or the Erewash marking part of the Nottinghamshire boundary. Within the county, streams may also mark parish or hundred (wapentake) limits. In lowland counties rivers were often navigable, yet in Derbyshire most were barriers rather than aids to travel. In wet winters larger rivers were often impassable, except where rare and expensive bridges had been built, such as at Cromford or Whatstandwell. Early routes avoided river crossings where possible and kept to ridgeways, above the thickest woods on the river banks.  Seasonal flooding was so bad in the lower Dove valley when Daniel Defoe visited in the 1720’s that he abandoned trying to reach Ashbourne from Derby.

It is believed that in pagan times water spirits (or gods or whatever) were worshipped; water being seen as the source of life. There is substantial archaeological evidence of votive offerings (such as money or jewellery) being found at sites of wells or springs. So this may explain a Derbyshire mystery: why were some medieval churches built so close to frequently flooding rivers? All Saints at South Wingfield is regularly swamped by the Amber, and is well away from the main village, and the same goes for Duffield’s St. Alkmund’s, built right on the banks of the Derwent, as is, further upstream, St. Helen’s at Darley Churchtown. Were these built on ancient sacred sites, or were these locations convenient for baptisms – or both?

Watermills were common before the Normans arrived, but it is noticeable that many in Derbyshire were located on minor rivers rather than on the Derwent. Presumably the large rise and fall of the Derwent made it more difficult to harness the river’s power. Some of the sites, for example on the Lea Brook at Smedley’s in Lea, seem today to have too little flow to power a mill wheel, but most had millponds to provide reserves of water during dry spells. When Arkwright built his first mill at Cromford he used the water from the Bonsall Brook rather than the nearby river. Later mills (e.g. at Milford and Darley Abbey) which did use the river required massive engineering works to create their weirs and leats.

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[i] Cameron, K. (1959) The Place Names of Derbyshire Vol. 1