Cam Rhee and Granta Operational Catchment

Filter map layers

Water Bodies


Protected Areas


Boundary/GIS data for this area

All Data Summary

Printable view of all summary tables

View all tables


    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