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  1. Northern Tree Habitats - Geophysical Institute

    May 22, 2025 · However, after seven growing seasons in Fairbanks, trees from the most northern homelands of the Dezadeash, Carmacks and Mayo areas of the Yukon are among the tallest, …

  2. Tropical Fossils in Alaska - Geophysical Institute

    May 22, 2025 · In contrast, the equatorial and tropical rain forests may contain as many as 3000 different species in an area no larger than one square mile. Trees of the rain forest tend to …

  3. Cottonwood and Balsam Poplar | Geophysical Institute

    May 22, 2025 · The Klukwan giant holds the national record for black cottonwood diameter. Its nearest rival, a tree near Salem, Oregon, does hold the national height record. The Klukwan …

  4. Burls - Geophysical Institute

    May 22, 2025 · Trees with burls seem to be found in a cluster; if one tree in an area has burls, it is likely that other trees around it has them too. This clumping is suggestive of leafhoppers or …

  5. Mummified forest tells tale of a changing north

    Jan 6, 2011 · The mummy trees of northern Ellesmere Island include a trunk of a pine tree four feet long and six inches in diameter. Each of the trees was at least 75 years old when it died. …

  6. More on Why Tree Trunks Spiral - Geophysical Institute

    May 22, 2025 · Granted, not all trees exhibit the same twist, but the majority of them do. The phenomenon can be likened to the claim that water will always spiral out of a drain in a …

  7. The majesty and mystery of Alaska yellow cedar

    Jul 23, 2021 · These trees, which can live longer than 1,000 years, grow on the rainy coast from the Oregon/California border through British Columbia and as far north as Prince William …

  8. The largest black spruce in Alaska | Geophysical Institute

    Aug 16, 2010 · The tallest trees are not always the winners of The Big Tree Challenge; foresters score trees on height, circumference and the spread of a tree’s crown. The black spruce on …

  9. Trees as Earthquake Fault Indicators - Geophysical Institute

    May 22, 2025 · Trees along faults often are killed by drowning because the faults tend to collect normal drainage water. In some instances, there are widespread tree kills caused by general …

  10. Feltleaf willows: Alaska’s most abundant tree

    May 25, 2023 · The range of the feltleaf willow, probably the most numerous tree in Alaska. From Alaska Trees and Shrubs by Les Viereck and Elbert L. Little, Jr.