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Atlas of Coal/Minerals and Important Resource Problem Areas for Fish and Wildlife in the Conterminous United States
This atlas highlights areas in the conterminous United States of potential concern involving coal and minerals development activities and fish and wildlife resources, in particular the Important Resource Problem Areas (IRPs) designated in 1980 by the U.S. Fish and Wildlife Service (FWS) as areas of emphasis in policy making.
Date:
July 1981
Creator:
Honig, Robert A.; Olson, R. J. & Mason, William T., Jr.
System:
The UNT Digital Library
Ecoregions of North America: After the Classification of J.M. Crowley
Color-coded map showing the ecoregions of North America, including the polar domain, humid temperate domain, dry domain, and humid tropical domain.
Date:
June 1981
Creator:
Bailey, Robert G.
System:
The UNT Digital Library