The river flows through the Somerset Wildlife Trust's Mounsey Wood Nature Reserve and Knaplock and North Barton SSSI, first notified in 1954, which are within Exmoor National Park.
A river runs through the Somerset Wildlife Trust's Mounsey Wood Nature Reserve and Knaplock and North Barton SSSI, which were established as a Special Site of Scientific Interest (SSSI) in 1954 and lie within Exmoor National Park.