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21985 books were found.
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The National Park Service, Natural Resource Program Center publishes a range of reports that address natural resource... Read More >>
This document presents the results of surface-water-quality data retrievals for Natural Bridges National Monument... Read More >>
A two-year systematic baseline survey of hoary marmot (Marmota caligata) distribution and abundance was conducted... Read More >>
In the late 1980's, the National Park Service (NPS) began an intensive program to monitor water quality and invertebrate... Read More >>
This report accompanies the digital geologic map for George Washington Memorial Parkway in Virginia, Maryland, and... Read More >>
The Northern Great Plains Network ranks at the bottom of the third quintile, among networks, in N Pollutant Exposure... Read More >>
The goal of the Northern Colorado Plateau Network (NCPN) integrated upland monitoring effort is to provide park... Read More >>