Caption
Visitor group at the entrance to the Nachtigallstollen, tour guide, GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here you can see the geology of the region, a thin coal seam is visible, underneath were thicker layers of coal that were mined, Witten, North Rhine-Westphalia, Germany, Europe
Credit line
Photo12/imageBROKER/Jochen Tack
Reference
BRK24E72_039
Model release
No
Property release
No
License type
Rights managed
Available size
105,4Mb (4,1Mb) / 24,8in x 16,5in / 7430 x 4956 (300dpi)