#06446 - A bull elk surveys his territory in Rocky Mountain National Park, Colorado

#00282 - An antelope ventures out to an open meadow, as dusk falls in Dunn County, ND

#20566 - A mountain goat relaxing on the slopes of Mount Evans, Colorado

#02531 - Bison near Painted Canyon Nature Trail in Theodore Roosevelt National Park, ND

#00031 - Bighorn ram grazing on glacier lilies near Highline Trail, Glacier National Park, MT

#07413 - A bighorn ram pauses alongside the Gallatin River, near US Hwy. 191 in Montana

#00160 - A newborn elk calf with its mother, near the Killdeer Mountains in North Dakota

#09891 - A fawn grazes in a meadow, in Montana’s Gallatin Valley

#25570 - A mountain goat kid rests with its mother in the shade on a summer afternoon in Glacier National Park, MT

#25627 - A mountain goat strolls into a flower-filled meadow in Glacier National Park, MT

#06416 - A juvenile elk on the alert, on a hillside in Rocky Mountain National Park, CO

#06422 - A pair of juvenile elk engage in playful sparring, Rocky Mountain National Park, CO

#20421 - A young mountain goat prepares to jump up to join some kids at Mt. Evans, CO

#20530 - A mountain goat kid rests in the sun on Mount Evans, Colorado

#05145 - Two bulls face off in a pasture atop South Killdeer Mountain, Dunn County, ND

#20537 - A contented mountain goat takes in the view from Mount Evans, Colorado

#26111 - Mountain goats grazing in an alpine meadow above Hidden Lake in Glacier National Park, MT