The crimson leaves of the sourwood tree are among the most showy now visible in the High Country’s forests. (Photo by Skip Sickler) The species appears frequently on open slopes and ridges occupied by oaks and pines.

Can’t tell a sourwood from a sweetgum? Join Grandfather Mountain naturalists for a guided walk series, “The Colors of Grandfather,” starting this weekend. At 1 p.m. each Saturday and Sunday through Oct. 19, staff will lead leaf-looking jaunts to showcase the glorious colors and share information, including tips for identifying trees. The programs are included with park admission.