mapping
Global High-resolution Shoreline Project
A new initiative to organize locally sourced geodetic control for horizontal and vertical datums.
John J. Helly
Contact: hellyj@CaliforniaCoastalAtlas.net / editor@CaliforniaCoastalAtlas.net
This work is licensed under a Creative Commons Attribution 3.0 License. 
The California Coastal Atlas is a member of DataCite and The International Coastal Atlas Network.