Rivers
From otters to freshwater shrimps, all animals are dependant on an abundant and reliable supply of clean water. Rivers sustain the natural environment, wildlife and people in equal measure.
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Living Rivers
Within Hertfordshire and Middlesex, over 600km of intertwining rivers, streams, brooks and canals flow across the landscape; connecting people, places and most importantly natural spaces for…
Chalk rivers
Cool, crystal-clear waters flow over gravelly beds, streaming through white-flowered water-crowfoot and watercress in serene lowland landscapes.
Herts Rivers Week
Celebrate Hertfordshire’s rivers – and help protect them!
Four River Restoration Projects to Celebrate Rivers Week
To celebrate Rivers Week 2023 we take a closer look at four river restoration projects that are helping to protect and enhance the region's special chalk rivers.
Living Rivers
Hertfordshire contains 10% of the world's chalk streams and the Herts and Middlesex Wildlife Trust spend a lot of their time and budget to try and protect these. You can help too! Whether you are a funder, an individual living near a chalk stream or a business...
First Herts Rivers Week – Celebrating Our Rivers, Protecting Their Future
The Trust is launching its first Herts Rivers Week to celebrate our local rivers, raise awareness of their importance and encourage the public to take action for their future protection.
Our Position on Chalk Rivers
Learn about our commitment to protecting and restoring chalk rivers, outlining the urgent actions needed to preserve these globally rare habitats and the wildlife they support.
Herts Rivers Week: Eight Indicator Species of a Healthy Chalk River
Celebrate the Trust’s inaugural Herts Rivers Week by looking for these eight species, which together indicate a healthy chalk river.
Improving the Health of Our Chalk Rivers
This World Rivers Day, the Trust is championing the importance of restoring the health of the area’s rare chalk river habitats.
Let it rain!
Despite the wet weather recently, the water levels are lower than they should be in this time of year. We can't control the weather, but we can influence our water usage to save wildlife!
Chalk Rivers and Farm Advisory
Discover how we're partnering with local farmers and landholders to restore and enhance the River Mimram, safeguarding this precious chalk stream for future generations.