Posted: Fri Sep 23, 2011 5:19 pm
THE BLACK HILLS NATIONAL FOREST IN 1874 AND 1994…
http://www.cfc.umt.edu/hosting/saf_e4/s ... 1_rupe.pdf
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http://www.cfc.umt.edu/hosting/saf_e4/s ... 1_rupe.pdf
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Exploration of Trees and Forests
http://www.ents-bbs.org/