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832-397759 - Waterfall, Lower Falls, Mountain River in a Gorge, Johnston Creek in Johnston Canyon, Bow Valley, Banff National Park, Rocky Mountains, Alberta, Canada, North America
832-397758 - Waterfall, Lower Falls, Mountain River in a Gorge, Johnston Creek in Johnston Canyon, Bow Valley, Banff National Park, Rocky Mountains, Alberta, Canada, North America
1174-11192 - A lynx in snow on a riverbank in Yellowstone national park.
1178-40275 - Steam rising from geyser in Yellowstone National Park, Wyoming, United States
1350-4637 - Fly fishing in Yellowstone National Park, United States
1350-4641 - Steam vents rising from river in Yellowstone National Park, USA
1350-4618 - Snowy landscape at Yellowstone National Park, USA
1116-51443 - Falling snow clings to an American Bison bull (Bison bison) standing in a meadow in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America
1116-51444 - American Bison bull (Bison bison) on a snowy day in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America
1116-51438 - Bighorn Sheep ram (Ovis canadensis) performs lip curl (flehmen display) in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America
1116-51437 - Bighorn Sheep ram (Ovis canadensis) courts a pair of ewes during the rut in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America
1116-51439 - Bighorn Sheep ram (Ovis canadensis) approaches through a sagebrush meadow on a snowy day in the North Fork of the Shoshone River valley near Yellowstone National Park; Wyoming, United States of America
1112-6124 - The lower Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6123 - The lower Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6126 - The upper Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6146 - The Yellowstone River surrounded by snow-capped mountains, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1112-6125 - The lower Yellowstone Falls in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1350-3015 - Lower Falls from Lookout Point, Grand Canyon of the Yellowstone River, Yellowstone National Park, Wyoming.
1350-3078 - Lower Falls of the Yellowstone River, with rainbow at base of the falls, from Artists Point, Yellowstone National Park, Wyoming.
1350-3073 - Gibbon River at sunrise, Yellowstone National Park, Wyoming.
1350-3079 - Lower Falls of the Yellowstone River, with rainbow at base of the falls, from Artists Point, Yellowstone National Park, Wyoming.
1350-3136 - Madison River sunrise; Yellowstone National Park.
![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.](https://images.robertharding.com/zoom/RM/RH/HORIZONTAL/860-288801.jpg "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.<br />860-288801")
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.
![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.](https://images.robertharding.com/zoom/RM/RH/HORIZONTAL/860-288798.jpg "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.<br />860-288798")
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.
![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.](https://images.robertharding.com/zoom/RM/RH/HORIZONTAL/860-288800.jpg "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.<br />860-288800")
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.
![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.](https://images.robertharding.com/zoom/RM/RH/VERTICAL/860-288799.jpg "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.<br />860-288799")
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.
1116-50351 - American Bison bull (Bison bison) plowing through deep snow in the Firehole River Valley, Yellowstone National Park; Wyoming, United States of America
1116-50346 - Pair of American Bison bulls (Bison bison) walking through the 'Bobby Socks' trees in the Firehole River Valley of Yellowstone National Park; Wyoming, United States of America
1335-148 - Four trumpeter swans (Cygnus buccinator), on the river with reflection, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-99 - American bison (Bison Bison) in the snow on a river bank, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-150 - Frozen bison (Bison bison), on a river bank, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-141 - Dead trees in a snowscape with fog, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-142 - Frozen bison crossing a stream, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-105 - Bison (Bison bison) in snow with geyser, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-119 - Trumpeter swan in river, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-102 - River otter (Lontra canadensis), peering over ice, with reflection, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-101 - Snow covered bison (Bison biso), on the river bank, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-106 - Two river otters (Lontra canadensis), running on snow and ice, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-126 - Snowscape of winding river and trees, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1335-107 - River otter (Lontra canadensis), standing on ice, with reflection, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1178-30578 - USA, Wyoming, Yellowstone National Park, Yellowstone River flowing through Grand Canyon in Yellowstone National Park
1178-30577 - USA, Wyoming, Yellowstone National Park, Yellowstone River flowing through Grand Canyon in Yellowstone National Park
1218-1370 - Beautiful sunset on the Yellowstone River, North Dakota, United States of America, North America
1218-1369 - Man showing off his big catch of the day fishing on Yellowstone River, South Dakota, United States of America, North America
1218-1371 - A stunning sunset view of the Yellowstone River, North Dakota, United States of America, North America
832-384320 - Yellowstone River flows through Gorge, Grand Canyon of the Yellowstone, View from North Rim, Brink of the Lower Falls, Yellowstone National Park, Wyoming, USA, North America
832-384339 - Waterfall, Lower Falls, Mountain River in a Gorge, Johnston Creek in Johnston Canyon, Bow Valley, Banff National Park, Rocky Mountains, Alberta, Canada, North America
832-384319 - Hiker at Red Rock Viewpoint, Lower Falls, Waterfall in a gorge, Grand Canyon of the Yellowstone River, View from North Rim, Yellowstone National Park, Wyoming, USA, North America
1318-215 - Yellowstone River, Montana, United States of America, North America
746-89476 - Lower Falls of Yellowstone Grand Canyon, Wyoming.
746-89480 - Sapphire Pool in Biscuit Basin, Yellowstone National Park, Wyoming.
746-89381 - Wooden homr on Yellowstone Lake with trees water reflections.
746-89396 - Black Opal Pool in Biscuit Basin, Yellowstone National Park, Wyoming.
746-89479 - Firehole River in Yellowstone. Waterfalls of hot water.
746-89406 - Sapphire Pool in Biscuit Basin, Yellowstone National Park, Wyoming.
746-89371 - Creek and pool in Biscuit Basin, Yellowstone National Park, Wyoming.
1116-44990 - Waterfall From The Yellowstone River, Yellowstone National Park, Wyoming, United States Of America
1116-44989 - Waterfall From The Yellowstone River, Yellowstone National Park, Wyoming, United States Of America
1174-6090 - Steam rising from hot springs, Yellowstone National Park, Wyoming, United States
1174-6089 - Steam rising from hot springs, Yellowstone National Park, Wyoming, United States
1186-149 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-133 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-142 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-129 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-126 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-119 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-117 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-118 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1186-121 - Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1218-765 - Frolicking in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1218-764 - Pretty scenic views in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1218-763 - Pretty scenic view in Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1116-40569 - Bull Elk, Yellowstone National Park, Near Madison River, Montana, Usa
1116-40988 - Bison Walking Along The Bank Of The Yellowstone River, Usa
483-2114 - Yellowstone River and Falls, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
764-5504 - Yellowstone River near Calcite Springs, Yellowstone National Park, UNESCO Wortld Heritage Site, Wyoming, United States of America, North America
764-5506 - Yellowstone River near Calcite Springs, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-759 - Lower Falls, Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-750 - American Bison (Bison bison), Little Firehole River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-755 - Lamar Valley, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-758 - Grand Canyon of the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-760 - Artists Point looking towards Lower Falls, Grand Canyon, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-761 - Grand Canyon of the Yellowstone River from Brink of the Lower Falls, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-749 - Elk (Cervus canadensis) crossing the Madison River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
762-756 - Cache Creek, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
1178-1375 - Elk resting by river, USA, Montana, Yellowstone National Park
857-86588 - A man standing on a rocky point below a rainbow and next to the Upper Falls of the Yellowstone River in Yellowstone National Park, Wyoming, Yellowstone, Wyoming, usa
816-7876 - Clouds reflecting in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7871 - View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7881 - The Lower Falls in the Grand Canyon of Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7877 - Clouds reflecting in the Yellowstone River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7885 - The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7879 - The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7878 - The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7884 - The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7882 - The Upper Falls in the Grand Canyon of Yellowstone in the Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7880 - The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
816-7870 - View over the Lewis River, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America