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The most heavily forested regions of the U.S. are Maine, New Hampshire, American Samoa, the Northern Mariana Islands and West Virginia; the least heavily forested regions are North Dakota, Nebraska, and South Dakota. [2] The U.S. had a 2018 Forest Landscape Integrity Index mean score of 6.65/10, ranking it 67th globally out of 172 countries. [6]
Map of wood-filled areas in the United States, c. 2000 [1]. In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2]
This is a list of the oldest-known trees, as reported in reliable sources. Definitions of what constitutes an individual tree vary. Definitions of what constitutes an individual tree vary. In addition, tree ages are derived from a variety of sources, including documented "tree-ring" ( dendrochronological ) count core samples, and from estimates.
Modoc National Forest contains the Medicine Lake Volcano, which has an elevation of 7,921 ft (2,414 m) and is the largest shield volcano in North America. There are 43,400 acres (17,600 ha) of old-growth forest here along with Mill Creek Falls in the South Warner Wilderness. [86] Monongahela: West Virginia
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Although giant trees grow in both tropical and temperate regions, they are very restricted geographically and phylogenetically. All the known giant trees occur in mesic climates, and nearly all of them are found in three regions: western North America (from California to British Columbia ), Southeast Asia (especially Borneo ) and southeastern ...
Today, trees over 60 m (200 ft) are common, and many are over 90 m (300 ft). The current tallest tree is the Hyperion tree, measuring 115.61 m (379.3 ft). [8] The tree was discovered in Redwood National Park during mid-2006 by Chris Atkins and Michael Taylor, and is thought to be the world's tallest living organism.
Today, the ficus trees stirring the controversy — believed to date to the late 1960s — create a shaded canopy across the avenue. Some of their benefits and drawbacks are on clear display.