Robert Harding

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832-393312 - Salt dump, potash mining, railway tracks, Kolonnenweg, Lochplattenweg, Gruenes Band, border trail, former German-German border, Philipsthal, Werratal, Hersfeld-Rotenburg district, Hesse, Germany, Europe
860-288801 - Clay loaded with iron oxides and dried out, Rio Tinto, Andalusia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.
860-288798 - Reflections on Rio Tinto, near its source, Andalusia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.
860-288800 - R?o Tinto, Andalucia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.
860-288799 - R?o Tinto, Andalucia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.
1311-250 - Toxic pond formed from runoff of mine tailings at an abandoned copper mine in the Prescott National Forest near Perkinsville, Arizona, United States of America, North America
1311-251 - Toxic pond formed from runoff of mine tailings at an abandoned copper mine in the Prescott National Forest near Perkinsville, Arizona, United States of America, North America
1202-294 - A dusk view of the iconic cliffside ruins of Botallack tin mine, UNESCO World Heritage Site, near St. Just, near Penzance, in west Cornwall, England, United Kingdom, Europe
1202-296 - A dusk view of the iconic cliffside ruins of Botallack tin mine, UNESCO World Heritage Site, near St. Just, near Penzance, in west Cornwall, England, United Kingdom, Europe
1202-354 - Evening sunlight on the ruins of a tin mine, on the Atlantic coast of Cornwall, Wheal Coates mine, UNESCO World Heritage Site, near St. Agnes, Cornwall, England, United Kingdom, Europe
1202-295 - A dusk view of the iconic cliffside ruins of Botallack tin mine, UNESCO World Heritage Site, near St. Just, near Penzance, in west Cornwall, England, United Kingdom, Europe
1116-45481 - The Road Out To Mccarthy And Kennicott Crosses Over The Kuskulana River Over 200 Feet Below The Kuskulana Bridge, Wrangell-St. Elias National Park, Southcentral Alaska, Autumn
698-3417 - The Crowns Engine Houses, Botallack historic Cornish tin mine, UNESCO World Heritage Site, Botallack, St. Just, Penzance, Cornwall, England, United Kingdom, Europe