<p>Bison herd grazes on a sagebrush hillside while storm clouds roll in</p>
<p>Bison herd grazing as a storm rolls in</p>
<ul><li>Keywords: yellowstone national park; mammals; wildlife; bison; bison bison; jacob w. frank; mountains; sunset; clouds; herd; northern range; storm; 20160818_ndh-yell-9799</li></ul>
Jacob W. Frank
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