NOAA's National Geodetic Survey employees level to a pier as part of a larger island-wide project to provide St. Thomas, U.S. Virgin Islands with a vertical datum.
Thank you for visiting NOAA's National Ocean Service. Take our website user survey. We welcome your ideas, comments, concerns and suggestions.
NOAA's National Ocean Service
N/MB6, SSMC4, Room 9149
1305 East-West Hwy
Silver Spring, MD 20910
Find out how far sound can travel in the ocean.
Continue Reading →
Revised: 2014-01-16 | You are here: http://oceanservice.noaa.gov