The Chełm Chalk Tunnels are a system of tunnels dug into the chalk under the city of Chełm in eastern Poland. The tunnelling began in the Middle Ages for chalk mining and was discontinued in the 19th
Chełm is a city in eastern Poland in the Lublin Voivodeship with 60,231 inhabitants as of December 2021. It is located to the south-east of Lublin, north of Zamość and south of Biała Podlaska, some 25
Chełm Chalk Tunnels
…The Chełm Chalk Tunnels (in Polish Chełmskie podziemia kredowe) are a system of tunnels dug into the chalk under the city of Chełm in eastern Poland. The tunnelling began in the Middle Ages for chalk mining and was discontinued in the 19th century. The tunnels also served Chełm's…