New England’s tallest lighthouse reached $78,000 at auction, but the federal government must still approve the sale. The Boon Island Light station which was reportedly built way back in 1855 on a small rocky island 6 miles off Maine’s coast has attracted more than a dozen bidders. Bidding was originally set to end around noon on Aug. 12, but the government extended it. The administration has up to 30 days to evaluate the high bid and close the deal. At that time, the buyer will be identified.