On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
Videos
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.
On December 3, 2009, more than 300 people gathered at the U.S. Geological Survey (USGS) headquarters in Reston, Virginia, to celebrate the 125th anniversary of USGS topographic mapping.