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The University of Pittsburgh is fortunate to own one of the rare, complete sets of John James Audubon’s Birds of America. It is considered to be the single most valuable set of volumes in the collections of the University Library System (ULS). Indeed, only 120 complete sets are known to exist. While ... [Information of the supplier]
digital.library.pitt.edu/a/audubon/
This hardcopy version was originally published in 1978 to provide a general description of the ecosystem geography of the Nation as shown on the 1976 map "Ecoregions of the United States." It was first published as an unnumbered publication by the Intermountain Region, USDA Forest Service, Ogden, Utah. ... [Information of the supplier]
www.fs.fed.us/land/ecosysmgmt/index.html
The Forest Inventory and Analysis (FIA) Program of the U.S. Forest Service provides the information needed to assess America's forests. As the Nation's continuous forest census, our program projects how forests are likely to appear 10 to 50 years from now. This enables us to evaluate whether current ... [Information of the supplier]
www.fia.fs.fed.us/tools-data
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