Petty Officer 3rd Class Charles Blackburn, a crewmember from Coast Guard Aids to Navigation Team Jacksonville, Fla., checks a newly-installed navigational light on the St. Johns River, Jan. 14, 2015. ANT Jacksonville is responsible for inspecting and maintaining approximately 1,100 different aids to navigation between Ossabaw Island, Ga., and Pons De Leon, Fla. (U.S. Coast Guard photo by Petty Officer 1st Class Stephen Lehmann)