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Hijmans, Robert J. This polygon shapefile contains the first-level administrative divisions of United States Minor Outlying Islands (adm1). Level 1 divisions include ... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
Hijmans, Robert J. This polygon shapefile contains the national boundary of United States Minor Outlying Islands (adm0). This layer is part of the Global Administrati... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.