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  1. Northern Tree Habitats - Geophysical Institute

    Jun 12, 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. Cottonwood and Balsam Poplar | Geophysical Institute

    Jun 12, 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 …

  3. 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 …

  4. Tree line changes on the Kenai Peninsula | Geophysical Institute

    Feb 6, 2008 · The changes in Kenai Peninsula trees might be due to the milder weather the peninsula, along with most of Alaska, has experienced since about 1977, when ocean-surface …

  5. More on Why Tree Trunks Spiral - Geophysical Institute

    Jun 12, 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 …

  6. 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.

  7. Orange trees in the Alaska Range | Geophysical Institute

    Sep 3, 2020 · While wandering middle Alaska this summer, I noticed orange spruce trees along the entire length of the Denali Highway, from Paxson to Cantwell. In what looked like a …

  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

    Jun 12, 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. The Life of A White Spruce In The Subarctic - Geophysical Institute

    Jun 12, 2025 · Even larger dead trees have been found. The current U.S. champion is located in northern Minnesota and is 36.9 inches in diameter and 128 feet tall. The largest white spruce …

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