River red gums depend on adequate access to water, usually provided by flooding. There are large river red gum forests on the floodplains of the Murray-Darling Basin (e.g. Barmah-Millewa Forest). These require frequent flooding to maintain their sustainability. Many were logged for decades or more which altered their structure. Management of river red gum forests is a complex process of maintaining the condition and viability of river red gums through maintenance of sufficient flow regimes and management of other direct and indirect human impacts (e.g. fire, grazing).