King Barrow Quarry

King Barrow Quarry is a nature reserve on the Isle of Portland covering around 12 hectares of limestone terrain with rocky slopes, grassy areas, and sheltered gullies. The landscape displays the remains of former quarrying activity while offering varied habitats for wildlife.

The quarry operated actively during the 19th century as workers extracted limestone for transport and use across the region. The industrial operation left behind tunnels and rail connections that remain partly visible today.

The site shows traces of quarrying work through structures left behind, including a shelter where workers once rested and old rail tracks that guided stone transport. These remains allow visitors to understand how people labored and moved materials through this landscape.

The site is accessed via Yeates Road off Easton Lane, with paths connecting to the broader South West Coast Path network. Sturdy footwear is useful given the rocky surfaces and uneven ground throughout the reserve.

The site harbors populations of rare blue butterflies and contains fossilized tree remains near the pathways, revealing the distinct geological layers of the region. These ancient plant fossils provide insight into even older periods of the island's formation.