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File:ANF Old-Growth Forest (1).jpg

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Betula alleghaniensis — Yellow birch, old-growth fallen tree.

  • Within the Tionesta Research Natural Area of Allegheny National Forest, in Wetmore Township, McKean County, Pennsylvania.
  • The exposed, stilted roots have grown from the stump of long-ago fallen tree.


  • Remote and difficult to access, the research area protects an old-growth forest of hemlocks, white pines, and northern hardwoods. It and the adjacent Tionesta Scenic Area form one of the largest tracts of old-growth forest east of the Mississippi River.
  • The forest has had its share of disturbances--deer overbrowsing, encroachment from oil and natural-gas drilling, and the destructive May 1985 tornado. The hemlock woolly adelgid has not yet been detected here; however, beech bark disease has killed many trees.
  • "Despite the disturbances, the forest is magnificent. It was late in the day when I visited, and I had time to explore only a small portion of the forest. Will make a return trip."
Date Taken on 11 June 2011, 19:28:04
Source Flickr: Old-Growth Forest (1)
Author Nicholas
Camera location41° 37′ 37.69″ N, 78° 56′ 28.04″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 12 June 2011, 22:42 by Dincher. On that date, it was confirmed to be licensed under the terms of the license indicated.
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current22:44, 12 June 2011Thumbnail for version as of 22:44, 12 June 20113,240 × 3,873 (12.11 MB)Flickr upload bot (talk | contribs)Uploaded from http://flickr.com/photo/14922165@N00/5826240924 using Flickr upload bot

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