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Photo by Eric Engman
Woodriver Elementary School students Luke Rogers, right, takes his turn turning a tree bore as he and classmates Sara Hajdukovich, left, and Alex Tarnai, center, take a core sample from a spruce tree to count rings and age the tree during the U.S Fish and Wildlife Service's annual Fairbanks Outdoor Days event Wednesday morning, May 7, 2008, at the University of Alaska Fairbanks West Ridge trail system. Sixth-graders from across the borough rotate through activity stations focusing on topics including Wildlife, Aquatic Ecosystems, Earth Science, Human Relationships to the Environment, and Forests.