A large herd of Mustang horses gallop through sagebrush, meadows, and trees in the foothills of the Gravelly mountain range near Ennis, Montana, in dramatic slow motion cinematography -- Available in HD and 4k -- 3840 x 2160 - 3 GB - QuickTime Movie - Apple ProRes 422 HQ - 78.4 MB/sec - 23.98fps --