Lydiard Brook - GB106039023310 Catchment area 1,328 ha, length 5.7km. Not designated artificial or heavily modified. Waterbody description The Lydiard Brook rises in Greatfield, collecting run-off from Lydiard Millicent and the M4 at Royal Wootton Bassett. This waterbody encompasses the recreational area of Lydiard Park. The geology is mainly limestone, but the outer reaches to the west and north are Oxford clay. The Lydiard Brook flows towards West Swindon through the residential areas of Roughmoor and Peatmoor Wood before joining the River Ray north of Sparcells. Land use and designations Flora and Fauna Conclusions and issues Water Framework Directive http://environment.data.gov.uk/catchment-planning/WaterBody/GB106039023310 Click here to go back to the main waterbodies information page Manage Cookie Preferences