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Although widely distributed across the Rocky Mountains, bighorn sheep (Ovis canadensis) persist chiefly in small, fragmented populations that are vulnerable to sudden declines as a result of disease, habitat loss, and disruption of their migratory routes due to roads and other human activities. Between 10 and 13 interbreeding bands of bighorn sheep occupy steep terrain in the upper Yellowstone River drainage, including habitat that extends more than 20 miles north of the park. These sheep provide visitor enjoyment as well as revenue to local economies through tourism, guiding, and sport hunting. Mount Everts receives the most concentrated use by bighorn sheep year-round. (National Park Service)

Yellowstone National Park, Wyoming.

Mammoth Hot Springs. This is Orange Spring Mound on the Upper Terrace.

Climber on El Cap

Lewis River,

Yellowstone national park, wy

they were doing construction on this part of the road, so we had a short wait

another excuse to get out and take shots of that menacing sky - the first 2 were taken by my sister

down the road, the motorcyclists would have to take shelter during a big time hail storm

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