EarthWorks Geospatial Catalog

World Map Units, 1:50 million (2012)

Author(s)
and
Description
This polyline shapefile contains international, disputed, indeterminate, and control line boundaries on land and offshore worldwide, including 200-mile nautical limits. The ground unit of measurement, or map unit, is based on country boundaries. Limited attributes in terms of type of boundary: disputed, treaty, and media lines. Disputed area data is derived from the The United States Central Intelligence Agency's World Factbook boundary database, but not every disputed or undefined boundary listed in the World Factbook boundary database is reflected in the main admin-0 boundaries attributes. Care should be taken with regard to undefined or disputed boundaries when attributing to reflect if the dispute is active or not. These data are represented at 1:50,000,000 scale. This layer is part of the Natural Earth Collection (v.2.0.0).Natural Earth is a public domain map dataset available at 1:10, 1:50 and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.
Publisher
North American Cartographic Information Society
Place(s)
Earth (Planet)
Subject(s)
Countries, Administrative and political divisions, and Boundaries
Year
2012
Held by
Stanford
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Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.
Attribute Value
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