The rust lives on the spruce tree throughout the year. The Klukwan giant holds the national record for black cottonwood diameter. Over the years, those squirrels have taught Boutin and his colleagues many things, including an apparent ability to predict the future. Then using tree ring dating methods, it may be possible to date earthquakes occurring before historical records were kept. The orange powder is composed of millions of tiny spores, which the rust fungus uses to reproduce. The ability to identify and date very large earthquakes occurring within the past thousand years is important in establishing earthquake risk and for predicting future earthquakes. When I hugged it, I could barely clasp my hands together. "But why should the tree spiral? More speculation here: Foliage tends to be thicker on the south side of the tree because of better sunlight. The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.

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