Therfield Heath is a biological Site of Special Scientific Interest and Local Nature Reserve on the chalk escarpment just north of Therfield, Hertfordshire. Since it lies south-west of the town of Royston, it is also known locally as Royston Heath. The heath is a common on which sheep are still regularly grazed. The site offers views towards the north, oveā¦
Therfield Heath is a biological Site of Special Scientific Interest and Local Nature Reserve on the chalk escarpment just north of Therfield, Hertfordshire. Since it lies south-west of the town of Royston, it is also known locally as Royston Heath. The heath is a common on which sheep are still regularly grazed. The site offers views towards the north, over the valley of the Cam as far as Cambridge.