We encourage everyone to work together to achieve the vision for the Colne Catchment. This requires a joined-up approach to land and water management, with active support from individuals, local communities and interest groups, businesses, local authorities, voluntary bodies and government agencies. We need catchment-wide thinking and local action.

Several of the projects detailed in this plan are ready to start as soon as funding is obtained. If you have any suggestions for potential sources of funding, please let us know.

Some of the projects will require some hands-on, practical help. If you can give your time and fancy getting involved with practical work in and around the river, this could be for you!

BBOWT and the Herts & Middlesex Wildlife Trust are looking for volunteers who are willing to regularly check for signs of mink on rafts on the Lower Colne, and also for volunteers willing to trap and dispatch mink humanely. For the area north of Denham Country Park please contact This email address is being protected from spambots. You need JavaScript enabled to view it., for the area south of Denham Country Park please get in touch via phoning 07871630339 or emailing This email address is being protected from spambots. You need JavaScript enabled to view it.  More information on Water Voles and the effects American Mink can have on them can be found at http://www.bbowt.org.uk/what-we-do/protecting-wildlife/water-vole-recovery-project

We will post more information here as other projects require help. Please check back regularly for details.

Join a local group, become a site warden or take part in conservation tasks.


Colne Catchment hosts


Groundwork South on behalf of the Colne Valley Park CIC

Colne Valley Park Visitor Centre

Denham Court Drive




Telephone: 01895 839857


Chilterns Chalk Stream Project

The Lodge

90 Station Road


OX39 4HA

Telephone: 01844 355502

Design by LTD Design Consultants and build by Garganey Consulting. From an original concept by the Herts and Middlesex Wildlife Trust.