Taken by the PA Dept. of Conservation and Natural Resources - Forestry Archive and used under Creative Commons licensing.
Taken by David Cappaert May 20 2006 and used under Creative Commons licensing.
Taken by Stanislav Doronenko April 4 2008 and used under Creative Commons licensing.
Taken by Robert Bieber January 14 2007 and used under Creative Commons licensing.
Taken by JeremyA November 3 2013 and used under Creative Commons licensing.
Taken by IvoShandor September 28 2007 and used under Creative Commons licensing.
Taken by Joshua Doubek August 9 2011 and used under Creative Commons licensing.
Taken by Bob Nichols/USDA August 21 2013 and used under Creative Commons licensing.
Taken by Chinneeb August 6 2010 and user under Creative Commons licensing.
Taken by Surrealis_uk August 29 2006 and used under Creative Commons licensing.
Taken by Kate.Gardiner January 12 2010 and used under Creative Commons licensing.
Taken by Duncan Brown (Cradlehall) September 9 2008 and used under Creative Commons licensing.
Taken by Jacopo Werther February 5 2011 and used under Creative Commons licensing.
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