The IENC program publishes data generated by the US Coast Guard that represents individual floating aids to navigation (buoys) on the inland waterway system.
The S-57 formatted buoy files are coded as overlay files, and other formats are rendered by third party viewing software to be visible on top of IENC source charts.
Presently, all buoys are stored in one file. This allows for all users to access buoys of interest, but may require some users to modify their individual zoom settings on third party viewing software.
(select from the following files for download)
(require appropriate local client viewer for each service)