Views from the El Chepe railway from Fuerte to Creel along the Copper canyon, Mexico, North America

Scenery along the El Chepe railway journey through Barranca del Cobre (Copper Canyon), Chihuahua state, Mexico, North America

View from the Copper Canyon train, Mexico, North America

The intake for a small scale hydro electric scheme in the Copper Mines Valley above Coniston, Lake District, Cumbria, England, United Kingdom, Europe

Sheridan Glacier, Copper River Delta, Alasca, USA, North America

Jungfernbruecke bridge, Berlin's oldest bridge over the copper trenches from 1798, Berlin, Germany, Europe

A camper's tent glows near the face of Child's Glacier in the Copper River Delta area of Alaska.

Freshly caught sockeye salmon filets grill over a fire at a campground on the Copper River near Chitina, Alaska.

Colorful Northern Lights Over Copper River Valley Near Glennallen, Southcentral Alaska, Winter

Northern Lights Over Snowcovered Evergreen Trees, Copper River Valley, Southcentral Alaska, Winter

Fog Rises Off Of The Copper River On A Cold Winter Evening, Warm Sunset Light Casting Mount Drum Into Shadows In The Background, Copper River Valley, South-Central Alaska, Alaska, United States Of America

Child's Glacier In The Evening, Cordova, Alaska, United States Of America

Alaska, Aerial of Chugach Mountains and Copper River Delta.

The wood fired copper stills at the River Antoine rum distillery, Caribbean

Germany, Berlin, Mitte, Museum Island. Berliner Dom, Berlin Cathedral with sightseeing tourists on a river cruise boat on the Spree.

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

aerial view Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

Rio Tinto red river reddish hue due to iron copper and sulfur dissolved in the water habitat with extreme conditions for life forms Andalusia

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.

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.

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.

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.