Author Archives: Daniel Scherzer

This week’s blog is from the Geography and Map Division of the Library of Congress.  The largest and most comprehensive cartographic collection in the world, the Geography and Map Division contains over six million maps in addition to a wide array … Continue reading →

This week’s atlas is the United States Geological Survey’s National Map, a collection of 7.5 minute topographic maps.  Produced from GIS (Geographic Information Systems) databases, these maps, called quadrangles, show the roads, elevation, and bodies of water of every square … Continue reading →

No map is perfect.  No map can one hundred percent accurately display the Earth’s geoid shape onto a two-dimensional surface.  Many have tried.  All have failed. A map projection is a representation of Earth’s three dimensional surface on just two … Continue reading →