Craters of the Moon
Volcanic eruptions occurred here between 15,000 and as recent as 2,000 years ago. This lone limber pine, dubbed the Triple Twist Tree, which began to grow after the lava of the last eruption cooled, helped to date the flow. The tree itself is some 1,350 years old. Radio-carbon dating and paleomagnetic measurements further indicated the flow took place 2,000 years ago. The tree was still alive in the late 1950's.