The Cooperative Charting Program is a major public service of USPS. Within this program, USPS Members:

  • Supply information to USCG and NOAA leading to corrections to nautical charts, small craft charts and Coast Pilot publications.
  • Supply data on depth surveys, range status, tidal current surveys and geodetic marks.
  • Inspect Aids To Navigation to identify and report damaged or misplaced Aids to USCG and local agencies.
  • Focus on specific navigation area through the Adopt-A-Chart subprogram. 

The Marco Island Sail and Power Squadron Coop Charting program is currently concentrating on inspections of Aids to Navigation (ATONs) in the region of our adopted chart.  Our Squadron has adopted the portion of Chart 11430 that is south of Lat 25 deg 59.5 min N. This region extends from a point about 1 mile north of Marco Island  to Everglade City, about 20 miles SE of Marco Island.  We check the condition and locations of ATONs and report discrepancies to the appropriate government organizations.

 Cooperative Charting Committee Chair:  P/C Carl W. Thieme 239 970-2177


 For purposes of assigning responsibilities and identifying ATONs, zones have been defined as shown below and, with more detail in Zone_Maps.pdf 


MISPS Coop Charting Zones