Crossword clues for Key ___, Fla. 4 letters:WESTKey ___, Fla.LARGOA Fla. keyUPPER___ Matecumbe Key, Fla.LARGOKey ___, Fla.LARGOFla. keyUSONEIts mile zero is in Key West, Fla.USONERoad from Fort Kent, Maine, to Key West, Fla.USONERte. with a terminus in Key West, Fla.