River Whitewater

Whitewater
Greywell Mill on the upper reaches of the River Whitewater
Location
Country	England
Counties	Hampshire
Physical characteristics
Source
• location	Bidden
• coordinates	51°14′15″N 0°59′14″W / 51.2376°N 0.9871°W / 51.2376; -0.9871
Mouth	River Blackwater
• location	South-east of Swallowfield
• coordinates	51°21′59″N 0°56′10″W / 51.3663°N 0.9361°W / 51.3663; -0.9361
Length	12.2 mi (19.6 km)
Basin features
Tributaries
• right	River Hart

The River Whitewater rises at springs near Bidden Grange Farm between Upton Grey and Greywell in Hampshire, England. It flows northeast and is a tributary of the River Blackwater near Swallowfield. Its headwaters flow over chalk and there is little pollution making the River Whitewater rich in wildlife.^[1] It was noted on Jansson's map of Hampshire of 1646.^[2]

The settlements of Greywell, North Warnborough, Hook, Hartley Wintney, Rotherwick, West Green, Mattingley, Bramshill and Heckfield lie on the River Whitewater.^[3]

The river contains a variety of species of fish. Fishing on part of the river is controlled by Farnborough and District Angling Society which has separate coarse and fly fishing sections. Like many rivers in the south of England, non-indigenous mink and signal crayfish are present.