ملف:Dry Tortugas50.jpg

 وصف قصير

NOAA Nautical Chart "DRY TORTUGAS" 1:30000 from 1997 on page http://historicals.ncd.noaa.gov/historicals/histmap.asp downloadable as *.sid file (a wavelet format viewable by "GeoExpress View by ILS"), converted to jpg (because sadly Wikipedia does not accept this great graphic format) and reduced resolution by half

 ترخيص

This image is a work of the National Oceanic and Atmospheric Administration, taken or made during the course of an employee's official duties. As works of the U.S. federal government, all NOAA images are in the public domain. Subject to disclaimers.