Alentours, Hodrusa hereditary adit

Slovakia/Hodrusa-Hamre/Stiavnicke Hills. Hodrusska hereditary gallery, also called Hereditary gallery of emperor Francis I. Lotrign was step by step built from 15th century as dewaterin gallery for Hodrusa and later also for Banska Stiavnica golden silver mines. Final length in 19th century was more than 12 km. Lower part 5 km long is used at this time as transporting way for golden ores from Rosalia mine.