Thursday, March 15, 2012

National Geodetic Survey Conducts High-accuracy Vertical Control of Washington Monument and Areas Around the National Mall

As part of an on-going cooperative relationship with the National Park Service, the National Geodetic Survey (NGS) conducted a high-accuracy vertical control (leveling) campaign this week on the National Mall in Washington DC. The survey data NGS collected will help determine whether the Washington Monument or the Jefferson and Lincoln Memorials incurred any vertical movement as a result of the recent earthquake activity that occurred in August 2011. For more information, contact Dave Doyle.