Old River Witham is a river in Lincolnshire, England, that flows through the town of Lincoln and into the North Sea. The river is approximately 66 miles long and has a catchment area of 1,100 square miles. The river has played an important role in the history of Lincolnshire, providing a source of water for agriculture and industry, as well as a means of transportation.
The Old River Witham is home to a variety of wildlife, including otters, water voles, and kingfishers. The river also supports a number of fish species, including brown trout, grayling, and pike. The river is an important habitat for migratory birds, such as swans and geese, which use the river as a stopover on their journeys.
The Old River Witham has been subject to a number of environmental challenges over the years, including pollution and habitat loss. However, efforts are being made to restore the river and its surrounding ecosystem. The river is now a designated Site of Special Scientific Interest (SSSI) and is managed by the Environment Agency. The restoration of the river is an ongoing process, but it is hoped that the Old River Witham will continue to play an important role in the ecology and history of Lincolnshire for many years to come.