The Langham Brook rises to the east of Cold Overton in Leicestershire and flows north-eastwards and across the county boundary into Rutland.

The construction of the Oakham Canal and the Syston and Peterborough Railway resulted in many modifications to the Langham Brook's course in the 19th century that can still be seen through this reach.

It then flows underneath the Birmingham to Peterborough railway line halfway between Wymondham and Whissendine where for a short time it forms the county boundary between Rutland and Leicestershire.

Factors preventing this section achieving a good status were high levels of phosphate originating from continuous sewage discharge and poor soil management in the surrounding agricultural land.

These include continuous sewage discharge from both the water industry and private septic tanks and poor nutrient management in the surrounding agricultural land.