![Durbachite boulder](/show/photo/22214/g150.jpg)
Durbachite boulder
© Otava, Jiří | 2005
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![Old red facies sandstones and conglomerates](/show/photo/21553/g150.jpg)
Old red facies sandstones and conglomerates
© Otava, Jiří | 2006
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![Březina shales](/show/photo/22202/g150.jpg)
Březina shales
© Otava, Jiří | 2011
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![Cenomanian conglomerates](/show/photo/21550/g150.jpg)
Cenomanian conglomerates
© Otava, Jiří | 2011
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![Josefov brachiopode limestones](/show/photo/21551/g150.jpg)
Josefov brachiopode limestones
© Otava, Jiří | 2011
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![Źluté písky adit](/show/photo/21452/g150.jpg)
Źluté písky adit
© Otava, Jiří | 2012
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![Jurassic geodes](/show/photo/21486/g150.jpg)
Jurassic geodes
© Otava, Jiří | 2012
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![Cenomanian sandstone](/show/photo/21485/g150.jpg)
Cenomanian sandstone
© Otava, Jiří | 2012
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![Cenomanian sandstones on tonalites](/show/photo/21477/g150.jpg)
Cenomanian sandstones on tonalites
© Otava, Jiří | 2012
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![Černý důl shaft](/show/photo/21451/g150.jpg)
Černý důl shaft
© Otava, Jiří | 2012
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![](/show/photo/22284/g150.jpg)
© Otava, Jiří | 2013
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