Tuesday, September 10, 2013

ISOLINE MAP

 
 
An Isoline Map of the Travel Times from NYC in 1800!
 
The Isoline Map is a thematic map that shows information on a topic superimposed over a base map.  This topic, of course is travel times from NYC.  The map conveys numerical values for continuous distributions by means of lines joining points of equal value.  The map includes a scale from 0 - 200 miles and travel time of 1 day to 6 weeks.
 
 
 

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