River Blackwater (River Loddon)

Blackwater (Loddon)
River Blackwater at Eversley bridge
River Blackwater (River Loddon) is located in Berkshire
River Blackwater (River Loddon)
Place of mouth (confluence with the Loddon) in Berkshire
Location
CountryEngland
CountiesHampshire, Surrey, Berkshire
Districts / BoroughsWaverley (borough), Surrey Heath, Rushmoor, Borough of Wokingham
Physical characteristics
Source 
 • locationRowhill Nature Reserve south of Aldershot, north of Farnham. County: Surrey.
 • coordinates51°14′31″N 0°47′13″W / 51.242°N 0.787°W / 51.242; -0.787
 • elevation125 m (410 ft)
MouthRiver Loddon
 • location
Berkshire
 • coordinates
51°23′06″N 0°57′29″W / 51.385°N 0.958°W / 51.385; -0.958
 • elevation
41 m (135 ft)
Length36 km (22 mi)
Discharge 
 • locationSwallowfield
 • average3.07 m3/s (108 cu ft/s)
 • minimum0.48 m3/s (17 cu ft/s)(17 August 1953)
 • maximum42.3 m3/s (1,490 cu ft/s)(17 September 1968)
Discharge 
 • locationFarnborough
 • average0.52 m3/s (18 cu ft/s)
Basin features
ProgressionBlackwater, Loddon, Thames
River systemThames Basin
Tributaries 
 • leftCove Brook, River Whitewater
 • rightWish Stream

The River Blackwater is a tributary of the Loddon in England and sub-tributary of the Thames. It rises at two springs in Rowhill Nature Reserve between Aldershot, Hampshire and Farnham, Surrey. It curves a course north then west to join the Loddon in Swallowfield civil parish, central Berkshire. Part of the river splits Hampshire from Surrey; a smaller part does so as to Hampshire and Berkshire.

The source is locally rare heath within the Thames Basin Heaths Special Protection Area, due to the Farnborough/Aldershot Built-up Area.

After 20 miles (32 km) the Blackwater is joined by the Whitewater near Eversley. The river gives its name to the town of Blackwater, extending back from the bank facing Camberley, and the wider urban area including Aldershot, Farnborough, and Camberley is sometimes collectively referred to as the Blackwater Valley.[1][2]

  1. ^ Surrey County Council, Woodhatch Place. "Blackwater Valley bus timetables". www.surreycc.gov.uk. Retrieved 19 May 2022.
  2. ^ "Blackwater Valley Group Home Page". Blackwater. Retrieved 19 May 2022.