A deer ambles through the animal habitat at grandfather Mountain as if admiring the autumn splendor around her. (Photo by Skip Sickler). In the High Country, residents are beginning to take note of another color change that signals the presence of fall: the transition of the deer’s fur from tan to gray.

Grandfather Mountain continues its guided walk series, “The Colors of Grandfather,” at 1 p.m. today and Sunday. Staff naturalists will showcase the changing autumn colors and explain the science behind this annual spectacle. The program is included with regular park admission.