Jeff Vanuga / Elk (Cervus canadensis) wintering on the National Elk Refuge, Jackson, Wyoming, USA, February.
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Russell Laman / Elk (Cervus canadensis) in a snowstorm. National Elk Refuge, Jackson Hole, Wyoming, USA. HIGHLY COMMENDED: Ten years and under in the Young Wildlife Photographer of the Year competition 2010
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Thomas Mangelsen / Elk (Cervus elaphus) herd of males in snow, National Elk Refuge, Wyoming
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Jim Brandenburg / Elk (Cervus elaphus) herd, National Elk Refuge, Jackson Hole, Wyoming
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Jeff Foott / Trumpeter Swan (Cygnus buccinator) parents and cygnets, National Elk Refuge, Wyoming
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Jeff Vanuga / Elk (Cervus elaphus canadensis) group migrating from the Jackson Hole Refuge through the Gros Ventre, Bridger-Teton National Forest, Wyoming, USA, May 2015.
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Peter Cairns / Horse and cart with tourists looking for elk, National Elk Refuge, Wyoming, USA. February 2014.
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Peter Cairns / Tourists watching Elk (Cervus canadensis) from horse and cart, National Elk Refuge, Wyoming, USA. February 2013.
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Peter Cairns / Horse and cart with tourists looking for elk, National Elk Refuge, Wyoming, USA. February 2014.
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Peter Cairns / Larger herd of Elk (Cervus elaphus canadensis) migrating across National Elk Refuge, with Buffalo (Bison bison) herd behind, Wyoming, USA.
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Peter Cairns / Larger herd of Elk (Cervus elaphus canadensis) migrating across National Elk Refuge, with Buffalo (Bison bison) herd behind, Wyoming, USA.
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Peter Cairns / Larger herd of Elk (Cervus elaphus canadensis) migrating across National Elk Refuge, with Buffalo (Bison bison) herd behind, Wyoming, USA. February 2013.