Cam Rhee and Granta Operational Catchment
Water bodies
There are 18 water bodies in this operational catchment.
Filter map layers
Data
Protected Areas
About
The Cam, Rhee and Granta catchment covers the region south of Cambridge. It comprises the upper reaches of the River Cam, flowing north from Saffron Waldon, and its major tributaries the River Rhee, which rises at Ashwell springs in Hertfordshire, and the River Granta between Saffron Waldon and Haverhill. Rivers are characterised by their base flow from the underlying chalk geology. The catchment is predominantly rural with an agricultural land use. The catchment has important wetland Sites of Special Scientific Interest. The rivers and tributaries are important for priority biodiversity species including white-clawed crayfish, otter, water vole and brown trout.
![Impounded tributary of the River Rhee at Wimpole Hall, Cambridgeshire](/catchment-planning/photos/operationalcatchment/3064.jpg)