832-392943 - Riesenburg cave, natural karst cave ruin of Frankendolomite, geotope, natural monument, in the back climber at rock face, near Engelhardsberg, district of Markt Wiesenttal, Upper Franconia, Franconian Switzerland, Franconia, Bavaria, Germany, Europe
832-392942 - Versturzhoehle Riesenburg, natural karst cave ruin of Frankendolomite, geotope, natural monument, near Engelhardsberg, district of Markt Wiesenttal, Upper Franconia, Franconian Switzerland, Franconia, Bavaria, Germany, Europe
832-384333 - Sinter terraces, hot springs, orange mineral deposits, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America
832-384323 - Detail photo, hot spring with orange mineral deposits and algae, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America
832-384326 - Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America
832-384325 - Dead trees on sinter terraces, hot springs, orange mineral deposits, Palette Springs, Upper Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America
832-384324 - Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces, Mammoth Hot Springs, Yellowstone National Park, Wyoming, USA, North America