Driving along Oregon 18 in the fall, near mile-marker 25, travelers might catch an unexpected sight: a smiley face in the trees. Nestled between the towns of Grand Ronde and Willamina, this cheerful emblem isn’t a natural phenomenon but a cleverly designed masterpiece of forestry. Stretching 300 feet in diameter, the face grins brightly from the hillside every autumn, its eyes and mouth a deep green surrounded by golden yellow. The secret? A combination of Douglas fir and larch trees planted precisely to create the illusion. The face was the brainchild of David Hampton, co-owner of Hampton Lumber, and Dennis Creel, the company’s then-timberland manager. In 2011, the pair collaborated to bring this whimsical idea to life. …“Passersby will be able to see the smiling face every fall for the next 30-50 years,” Hampton Lumber’s Kristin Rasmussen said. After that, the trees will be harvested and processed into lumber at Hampton’s nearby sawmills.