Orthophotos are aerial photos that are digitally corrected for distortions and other errors. Through a project completed in June 2001, the Massachusetts Office of Coastal Zone Management (CZM), the National Oceanic and Atmospheric Administration’s Photogrammetry Division, and the National Geodetic Survey produced orthophotos that cover most of the coastal zone of Massachusetts. These 1:10,000 Coastal Color Orthophoto Images are available on the MassGIS website, along with further details on the project. See MassGIS Data - 1:10,000 Coastal Color Orthophoto Images.