Viaduct Quarry

Viaduct Quarry is a protected geological site in Shepton Mallet, Somerset, with exposed layers of Downside Stone from the Lower Jurassic period. The rock walls display the different strata clearly, allowing visitors to observe the natural layering and composition of the pale limestone formations.

The site was designated as a Site of Special Scientific Interest in 1984 to protect significant rock formations that developed near the ancient Mendip Island. This designation recognized the importance of these layers for understanding how the regional geology formed over time.

The site functions as an educational center for geology students who examine the rock formations and study the regional geological processes.

The site is open to visitors who wish to observe the exposed rock walls and learn about the geological formations, but requires care due to steep slopes and exposed stone faces. Sturdy footwear is recommended, and visitors should take extra caution during wet weather when surfaces can become slippery.

The quarry contains the thickest and most visible section of Downside Stone in the region, making it valuable for understanding local geological history.