A giant step for understanding redwood tree rings - Save the Redwoods League
Trunk section of 1000-year old giant redwood tree. The markers indicate the years when tree rings were formed, with the innermost ring at 1000 AD and the outermost at 1925 AD. Stock
10/21 - Big Basin Redwoods State Park, Part 1
Chronicles of the Rings: What Trees Tell Us - The New York Times
Redwood tree rings hi-res stock photography and images - Alamy