NGS History
The National Geodetic Survey was established as the Survey of the Coast by President Thomas Jefferson in 1807. Today’s National Geodetic Survey is part of NOAA’s National Ocean Service.
- Organizational Milestones
- Scientific Milestones
NGS Historical Milestones
- Ferdinand Hassler
- Alexander Bache
Historical Figures
- Establishing Survey Networks
- Triangulation and Horizontal Networks
- Leveling and Vertical Network
- Gravity Surveys
Surveying and Related Disciplines
- Distance Measuring
- Theodolite
- Bilby Tower
- Spirit Leveling
Historical Equipment
- Coastal Mapping
- Topographic Maps (T-sheets)
- Plane Table Surveying
- Aerial Photography
- Aeronautical Surveys
Coastal Mapping and Related Disciplines
- Commemorative Mark Home
- Mark Listing
- Email Mark Coordinator
