Natasia Wahlberg demonstrates how berries should be picked carefully with a rake to avoid harming the plant. Wahlberg, a Yupik orginally from Bethel, was picking late-ripening "blackberries," known more widely as crowberries, near the top of Hatcher Pass to make eskimo icecream. The road over the pass is closed to vehicle traffic for winter starting Sept. 14 this year.