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.


Chilterns ANOB

River Chess Smarter Water Catchment

This ground-breaking initiative brings together key organisations and community groups to address issues on a catchment scale and aims to restore one of the Chilterns’ finest chalk streams to health. The Chilterns Chalk Streams project is a key partner in this initiative.

Recent News

Love Exploring? Try our new guided family trail

Chiltern Chalk Streams have teamed up with Bucks Council and Love Exploring to create a new fun guided trail along...

Rivers Week: how did it go?

During Rivers Week (18th and 24th September), our team were out and about across the Chilterns involved in a variety...

Rivers Week in the Chilterns

Organisations from around the Chilterns are planning events to celebrate Rivers Week  between 18-24 September.


Chilterns ANOB

Teacher Training Workshop: Investigating the River Chess

  • Monday 22nd January
  • 4pm

This twilight session introduces a set of KS4 & 5...

Chilterns ANOB

Chilterns ANOB
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.
Chilterns ANOB

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