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Chalk streams are a characteristic and attractive feature of the Chilterns landscape. They are also a globally rare habitat. In fact there are only 283 chalk streams in the UK, and the UK accounts for around 85% of the global total.

Chalk streams are important habitats for wildlife and support a massive range of species. They are home to some of our most threatened plants and animals, such as the water vole and brown trout. They also have a fascinating history and supported many thriving industries in the past.

Our three films provide an excellent overview, explaining ‘What are chalk streams, and why are they special‘, How chalk streams work, and exploring the threats they face.

The nine Chilterns’ chalk streams are so important that a special partnership project has been created to conserve them. Uniting all the organisations with an interest in the streams, the Chilterns Chalk Streams Project works with local people across the Chilterns to improve river habitats, improve access and enjoyment and promote the sustainable use of water.

 

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Chilterns Chalk Streams Project Annual Report

Read our latest Annual Report to find out more about the work of the Chilterns Chalk Streams Project.

Recent News

Riverfly Open Day 2024

On Saturday 5th October, we held our annual Riverfly Open Day at the Boxmoor Trust Centre, starting with talks about...

SWC Stakeholder Event

On Monday 30th of September the River Chess Citizen Science team held a stakeholder event to share challenges and success...

Update on Chesham Moor

Work is now underway on our project to restore the River Chess at Chesham Moor. We’re delighted with the level...

Events

Chilterns ANOB

Guided fungi walk at Hockeridge and Pancake Woods

  • 25 October
  • 12:30

Did you know that fungi are not plants? And did...

Chilterns ANOB

Are you a Chessnut?

  • 6 November
  • 19:00

Don't miss the opportunity to hear the updates on the...

Chilterns ANOB

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Chilterns ANOB

River Chess Smarter Water Catchment

We're key partners in this ground breaking initiative - working on a catchment scale to restore one of the Chilterns’ finest chalk streams to health.
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