Collyweston Quarries

The Collyweston Quarries cover 6.6 hectares near the village of Collyweston in Northamptonshire. They once supplied the region’s distinctive stone slates, a Jurassic limestone that splits naturally along its bedding planes. The slates date from Roman times and were used in buildings up to ten square miles away. Quarrying peaked in the late 19th century but declined by the 1970s. Traditional methods relied on winter frost to split the stone. In 2016 a local company reopened a mine to revive hand-splitting techniques. After quarrying ended, the site became a nature reserve managed by the Wildlife Trust. The rough grassland on Jurassic limestone now holds over a hundred flowering plant species. Wild thyme, dropwort, dyer’s greenweed and clustered bellflower grow here. The reserve supports a large butterfly population and other wildlife. It was designated a Site of Special Scientific Interest for its ecological value. The transformation shows how old quarries can become havens for flora and fauna. Visitors walk paths through the grassland and limestone outcrops. They can see the remains of former quarry faces and spoil heaps. Interpretive signs explain the site’s geological and industrial past. The reserve offers quiet views across open limestone grassland. It is a place to watch butterflies and listen to grassland birds. The contrast between industrial scars and thriving wildlife is striking.