We drove through Bucksport, ME to reach Fort Knox State Historic Site and the Penobscot Narrows Bridge Observatory in Prospect, ME. Then, we drove through the town again, and again. There were NO SIGNS to indicate where to turn to reach this Site. This attraction is advertised in all the tour books, the AAA's book and on the Maine.gov web site, but I guess it is not important enough for them to invest in a SIGN. We finally stopped at the tourist information center to get directions.