Solvayovy lomy, Mining site and open-air museum in Svatý Jan Pod Skalou, Czech Republic.

Solvayovy lomy is an open-air museum of limestone mining and narrow-gauge railways in the former quarries near Svatý Jan pod Skalou. It preserves a 600 mm railway with about two kilometres of track, a 139-metre adit, over 50 locomotives and some 150 wagons, plus the upper station of a former gravity cableway.

The Belgian Solvay company decided in 1916 to open its own limestone quarry, bought land from Václav Komenda for 50,000 crowns, and began extraction on 27 June 1918. The South quarry was linked to the original one by a 217 m adit driven in 1930. Solvay stopped mining in 1956; the road administration finished removal in 1964.

The site reflects Czech industrial heritage through its preserved equipment and trains, showing how workers once operated these machines daily. Visitors can observe how mining shaped the landscape and local economy over many decades.

The site is typically open from May to October and is best enjoyed during dry weather. Unpaved paths and uneven ground require sturdy footwear and careful walking throughout your visit.

The gravity-powered cableway, over 1,500 m long and built by J. Pohlig, linked the quarry to the railway at Loděnice from 1918, not to a river. It was rebuilt in 1932, its lower station converted for truck loading in 1959, and it closed in 1965; only the upper station survives, awaiting restoration.