The River Colne rises near Ridgewell, Suffolk [Map] from where it flows past Great Yeldham [Map], Sible Hedingham [Map], Halstead [Map], Earls Colne [Map], Wakes Colne [Map], Aldham [Map], Fordham Heath [Map] to Colchester [Map] then past Wivenhoe [Map] where it widens before joining the North Sea at Brightlingsea [Map].