Subject: ‘topographic mapping’
December 1, 2009 USGS Celebrates 125 Years of Topographic MappingData, Features, GIS NewsDecember 3rd, 2009 marks the 125th anniversary of the national program for topographic mapping for the United States Geological Survey (USGS). The USGS was founded in 1879 by an act of Congress and tasked with the “classification of the public lands, and examination of the geological structure, mineral resources, and products of the national domain“. ... read more |
