We would like to thank the National Oceanic and Atmospheric Administration's (NOAA) Center for Operational Oceanographic Products and Services (CO-OPS) for the use of their bench mark, tide station, and tidal datum data. We appreciate their permission to publish the Atlantic Beach, North Carolina, bench mark sheet and "Tidal Station Location and Ranges" pages from the Tidal Prediction section of their Web site. We specifically thank Stephen K. Gill and Stephen Lyles of NOAA for their assistance with the CO-OPS data and for providing additional references on tidal datums. We thank NOAA's National Geodetic Survey (NGS) for the use of their datasheets and for permission to publish a datasheet in this report. This work is part of the U. S. Geological Survey Coastal and Marine Geology Program's National Assessment of Coastal Change Hazards project.