http://www.treehugger.com/files/2007/06/3-d_forest_mapping.php
LIDAR maps, or light detection and ranging, provide detailed information about a particular landscape than does a normal aerial photo. The type of data collected is used to make a 3-D map of a certain area. The map above is a LIDAR Map of a forest which gives accurate measurements of the forest floor and tree heights. This new type of technology has become extremely handy for conservationists worldwide.
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