Duncan Usher / Soda Butte, Lamar Valley, Yellowstone National Park, Wyoming
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Duncan Usher / Soda Butte rock formations, Lamar Valley, Yellowstone National Park, Wyoming
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Suzi Eszterhas / American Bison (Bison bison) grazing in Lamar Valley, Yellowstone National Park, Montana
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Jack Dykinga / Cow parsnip (Heracleum lanatum) in flower with fog rising at sunrise over Absaroka Mountain range, Lamar Valley near Soda Butte Creek, Yellowstone National Park, Wyoming, USA.
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Jack Dykinga / Cow parsnip (Heracleum lanatum) in flower with fog rising at sunrise over Absaroka Mountain range, Lamar Valley near Soda Butte Creek, Yellowstone National Park, Wyoming, USA.
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TOM MANGELSEN / Quaking aspens and grasses turn golden as an autumn storm darkens the sky above Lamar Valley in Yellowstone National Park, Wyoming. [SCAN]
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TOM MANGELSEN / Aspen (Populus sp.) trees standing on a hillside in snow, backlit by sun breaking through clouds, Lamar Valley, Yellowstone National Park, Wyoming, USA. February.
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Kirkendall-Spring / Frost-covered Cottonwood (Populus sp.) trees in snowy landscape, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022.
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Kirkendall-Spring / Cottonwood (Populus sp.) trees in autumn foliage along the Lamar River, Lamar Valley, Yellowstone National Park, Wyoming, USA. September, 2021.
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Kirkendall-Spring / Cottonwood (Populus sp.) trees in autumn foliage surrounded by early autumn snow along the Lamar River, Lamar Valley, Yellowstone National Park, Wyoming, USA. October, 2019.
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Kirkendall-Spring / Cottonwood (Populus sp.) trees reflecting on the Lamar River in winter, Lamar Valley, Yellowstone National Park, Wyoming, USA. February, 2015.
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Kirkendall-Spring / Small creek winding through snow-covered landscape on stormy winter day, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2021.
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Kirkendall-Spring / Frosty trees along the bank of Rose Creek in winter, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2014.
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Kirkendall-Spring / Trees reflecting in the Lamar River in summer, Lamar Valley, Yellowstone National Park, Wyoming, USA. July, 2016.
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Kirkendall-Spring / Trees along riverbank in evening light, Lamar Valley, Yellowstone National Park, Wyoming, USA. June, 2013.
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David Welling / Cottonwood trees (Populus fremontii) and young Willows (Salix sp.) growing beside river, Lamar valley, Yellowstone National Park, Wyoming, USA.
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George Sanker / American buffalo (Bison bison) herd grazing in grassland, Lamar Valley, Yellowstone National Park, Wyoming, USA. September.
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Kirkendall-Spring / Cottonwood trees (Populus sp.) covered in thick frost in winter, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022.
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Kirkendall-Spring / Frost-covered Cottonwood (Populus sp.) trees at sunrise, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022.
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Kirkendall-Spring / Frost-covered Cottonwood (Populus sp.) trees at dawn, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022.
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Kirkendall-Spring / Cottonwood trees (Populus sp.) silhouetted against winter sunset, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022.
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Kirkendall-Spring / Cottonwood trees (Populus sp.) silhouetted against winter sunset, Lamar Valley, Yellowstone National Park, Wyoming, USA. January, 2022..
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Kirkendall-Spring / Frosted trees at sunrise, Lamar Valley, Yellowstone National Park, Wyoming, USA. January 2022
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Charlie Summers / Grey wolf (Canis lupus) standing alert in snowfield, Lamar Valley, Yellowstone National Park,Wyoming, USA. January.
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Charlie Summers / Two Shiras moose (Alces alces shirasi) bulls standing in snow touching noses, Lamar Valley, Yellowstone National Park, Wyoming, USA. February.
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Jeff Vanuga / Wolf watchers in Lamar Valley. Yellowstone National Park, USA. June 2013.
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Mike Read / Full moon setting over a wooded ridge in the Lamar Valley, Yellowstone National Park, Wyoming, USA, June 2019
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Mike Read / Uinta ground squirrel (Spermophilus armatus) feeding on grass stem, Lamar Valley, Yellowstone National Park, Wyoming, USA, June.
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Mike Read / Bighorn sheep (Ovis canadensis) amongst Silver sagebrush (Artemisia cana) one with a tracking collar, Lamar Valley, Yellowstone National Park, Wyoming, USA, June.
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Mike Read / Pronghorn (Antilicarpa americana) female with twin calves, amognst Silver sagebrush (Artemisia cana) Lamar Valley, Yellowstone National Park, Wyoming, USA, June.