GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here you can see the geology of the region, a thin seam of hard coal is visible, underneath
GeoRoute Ruhr, Dünkelberg quarry, in the Muttental valley, here you can see the geology of the region, a thin seam of hard coal is visible, underneath were thicker layers of hard coal that were mined, Witten, NRW, Germany,
Size: 5464px × 3640px
Photo credit: © Jochen Tack / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 3, age, area, carboniferous, coal, colliery, deposits, district, earth, face, geitling, geo, geological, geology, georoute, heritage, history, industrial, landscape, layer, lwl, metropolis, mining, mountains, museum, muttental, nachtigall, north, nrw, period, quarry, rhine-westphalia, rock, route, ruhr, ruhrpott, seam, strata, stratification, upper, valley, ünkelberg