|
Encyclopedia of Austria:
Bergbehörden |
|
|
Encyclopedia of Austria:
Bergknappen |
|
|
Encyclopedia of Austria:
Bergrecht |
|
|
Encyclopedia of Austria:
Blei, Bleierze |
|
|
Encyclopedia of Austria:
Bodenschätze |
|
|
Encyclopedia of Austria:
Kupfer |
|
|
Encyclopedia of Austria:
Montanistik |
|
|
Encyclopedia of Austria:
Oberösterreich |
|
|
Video Album:
Mining salt in Dürnberg near Hallein |
|
|
Video Album:
Salt mine in Tyrol, 1934 |