2008. Research Data Services (RDS). Index to the Lehman Scanned Map Collection is a polygon theme that serves as an index to scanned sheets from the Lehman Map collection. Each featu...
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1996. Environmental Systems Research Institute (Redlands, Calif.). International Airports is a point theme representing over 1,000 airports worldwide. Attribute information includes the airport name and the name o... ESRI.
2016. United States. National Geospatial-Intelligence Agency. This layer serves as an index to the Jet Navigation Chart (JNC) 1:2,000,000 scale aeronautical chart series. The series contains approximately 111 ... East View Cartographic, Inc.
394. Land Use, 1996
1996. Environmental Systems Research Institute (Redlands, Calif.). Land Use is a polygon theme representing land use areas worldwide.
The distribution of land use on the continents shows the relationship of land u... ESRI.
2012. United States. Department of State. Office of the Geographer. This line shapefile contains country boundaries for Africa and American continents. Large Scale International Boundaries (LSIB) are created and mai... United States. Department of State. Humanitarian Information Unit.
2010. National Geophysical Data Center. This map layer shows isogonic lines (lines of constant declination of the Earth's magnetic field), derived from the International Geomagnetic Refer... National Atlas of the United States.
2010. National Geophysical Data Center. This line shapefile shows lines of equal horizontal intensity of the Earth's magnetic field, derived from the International Geomagnetic Reference F... National Atlas of the United States.
2010. National Geophysical Data Center. This shapefile shows isoclinic lines (lines of constant inclination of the Earth's magnetic field), derived from the International Geomagnetic Refe... National Atlas of the United States.
2010. National Geophysical Data Center. This map layer shows isoporic lines (lines of equal annual change, or secular variation, in the declination of the Earth's magnetic field), derived... National Atlas of the United States.
2010. National Geophysical Data Center. This line shapefile shows lines of equal annual change (secular variation) in the horizontal component of the total field intensity of the Earth's ... National Atlas of the United States.