• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Western Yarrow

Western Yarrow - Achillea millefolium
Western Yarrow - Achillea lanulosa
NPS Photo by Jim Pisarowicz
Two kinds of yarrow may be found in the Black Hills. Western Yarrow is the most frequently seen. Common Yarrow is a Eurasian species.

Did You Know?

Bull elk in the park.

A Rocky Mountain bull elk weighs between 700 - 800 pounds. Rocky Mountain elk were introduced to the park in 1914 and 1916. More...