YOSEMITE, Calif. (KSEE/KGPE) – Posters warning visitors about the plague have been catching the eye of Yosemite National Park visitors – but, rangers say the signs are merely cautionary.

Hoping to draw attention to Harper’s artistic chops and lasting legacy, Yakush recently curated a virtual exhibition of the 10 national park posters Harper created in the 1970s and 80s, which were ...