River Blackwater (River Loddon)

Blackwater (Loddon)
River Blackwater at Eversley bridge
Place of mouth (confluence with the Loddon) in Berkshire
Location
Country	England
Counties	Hampshire, Surrey, Berkshire
Districts / Boroughs	Waverley (borough), Surrey Heath, Rushmoor, Borough of Wokingham
Physical characteristics
Source
• location	Rowhill Nature Reserve south of Aldershot, north of Farnham. County: Surrey.
• coordinates	51°14′31″N 0°47′13″W / 51.242°N 0.787°W / 51.242; -0.787
• elevation	125 m (410 ft)
Mouth	River 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)
Length	36 km (22 mi)
Discharge
• location	Swallowfield
• average	3.07 m3/s (108 cu ft/s)
• minimum	0.48 m3/s (17 cu ft/s)(17 August 1953)
• maximum	42.3 m3/s (1,490 cu ft/s)(17 September 1968)
Discharge
• location	Farnborough
• average	0.52 m3/s (18 cu ft/s)
Basin features
Progression	Blackwater, Loddon, Thames
River system	Thames Basin
Tributaries
• left	Cove Brook, River Whitewater
• right	Wish 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]