Map of Africa Showing its most Recent Discoveries (Raster Image)

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Abstract/Contents

Abstract: This layer is a georeferenced raster image of a continental map of Africa from 1881. This map shows the expedition routes of Stanley and Livingstone and contains an inset depicting the Island of St. Helena (place where Napoleon was buried). This map was georeferenced using a Sinusoidal projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map.
Purpose: This historic paper map provides an historical perspective of the cultural and physical landscape during this time period. The wide range of information provided on these maps make them useful in the study of historic geography. As this map has been georeferenced, it also can be used as a background layer in conjunction with other GIS data.

Type of resource	cartographic, software, multimedia
Form	Raster Dataset
Place	Stanford, California, US
Publisher	Stanford Digital Repository
Publication date	2013
Language	English
Digital origin	born digital
Map data	Scale not given. ; Custom projection W 69°39ʹ19ʺ--E 110°3ʹ59ʺ/N 49°29ʹ1ʺ--S 45°37ʹ39ʺW 69°39ʹ19ʺ--E 110°4ʹ1ʺ/N 49°29ʹ1ʺ--S 45°37ʹ45ʺ, Scale not given ; EPSG::4326

Creator	Mitchell, S. Augustus (Samuel Augustus), 1792-1868
Creator	Stanford Geospatial Center
Creator	Williams, W. (Wellington)

Attribute accuracy report	The horizontal positional accuracy of a raster image is approximately the same as the accuracy of the published source map. The lack of a greater accuracy is largely the result of the inaccuracies with the original measurements and possible distortions in the original paper map document. There may also be errors introduced during the digitizing and georeferencing process. In most cases, however, errors in the raster image are small compared with sources of error in the original map graphic. The RMS error for this map is 1539.89 meters. This value describes how consistent the transformation is between the different control points (links). The RMS error is only an assessment of the accuracy of the transformation.
Supplemental information	For more information about Stanford's Maps of Africa Collection, see here: https://exhibits.stanford.edu/maps-of-africa.
WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Original map in SearchWorks	Title Map of Africa Showing its most Recent Discoveries
Location	https://purl.stanford.edu/px984sn6906

Use and reproduction: This work is in the public domain. There are no restrictions on use.
Copyright: This work has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
License: This work has been identified as being free of known restrictions under copyright law, including all related and neighboring rights (Public Domain Mark 1.0).

Preferred citation: Mitchell, S. Augustus, Wellington, Williams, and Stanford Geospatial Center. (2013) Map of Africa Showing its most Recent Discoveries (Raster Image). Stanford Digital Repository. Available at: http://purl.stanford.edu/px984sn6906.

Georeferenced maps of Africa

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