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Displaying items 1 - 2 of 2
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1. Tree canopy cover in the Great Lakes region, 1985-2019 Data publication contains GIS data

Author(s):
Filippelli, Steven K.; Schleeweis, Karen G.; Nelson, Mark D.; Fekety, Patrick A.; Vogeler, Jody C.

2. National river recreation study data: a nationwide survey of river recreation use from 1977-1984

Author(s):
Cole, David N.