The Not Bourne Yesterday project aims to conserve the rare rivers' environmental and cultural heritage.

A project that aims to restore and protect the Chilterns’ chalk streams has received a £351,083 grant from The National Lottery Heritage Fund.

Not Bourne Yesterday is being developed by nature reserve Chilterns National Landscape (CNL), which covers 833 sq km (322 sq miles) across Oxfordshire, Buckinghamshire, Hertfordshire and Bedfordshire.

The project encompasses 12 interweaving initiatives that aim to conserve the rare rivers’ environmental and cultural heritage, which spans 8,000 years.