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2014. Wessel, Paul and Smith, Walter H. F. This polygon shapefile represents the boundary between land and ocean, excluding Antarctica, at low resolution. Low represents an 80 percent reduct... United States. National Geospatial-Intelligence Agency.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states worldwide, for which the smallest subdivisions are countries. Sovereign states, map units, map ... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states. These rarely correspond to actual administrative divisions but rather highlight geographical r... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts 197 sovereign states. These rarely correspond to actual administrative divisions but rather highlight geographical r... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile represents time zone boundaries for the world. Time zones are primarily derived from the Central Intelligence Agency map of ... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile contains the boundaries of urban areas with dense areas of human habitation worldwide derived from 2002-2003 MODIS satellite... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile contains the boundaries of urban areas with dense areas of human habitation worldwide derived from 2002-2003 MODIS satellite... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts boundaries of urban areas with dense areas of human habitation worldwide. Regional significance is favored over popu... North American Cartographic Information Society.
2017. Sierra Nevada Conservancy. This polygon shapefile contains the boundary of the Watershed Improvement Program's Yuba Bear watershed. Sierra Nevada Conservancy.
2006, 2007, 2008, 2009, and 2010. Eubank, Nicholas. This polygon shapefile represents best estimates of ward and constituency boundaries in Zambia based on available sources. The primary source for t... Eubank, Nicholas.