U.S. Geological Survey Open-File Report 03-044
Figure 4
Figure 4. Map showing the partitioning of the Federal part of the National Petroleum Reserve Alaska study area into economic sub-areas. The numbers in parenthesis represent the area in millions of acres.
U.S. Department of the Interior, U.S. Geological Survey
URL: http://pubs.usgs.gov/of/2003/of03-044/fig4.htm
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