ocr: Fa THIS LIGHTHOUSE IS ONE OF FOUR COLONIAL LIGHTHOUSES AUTHORIZED BY GEORGE WASHINGTON AND DEDICATED BY GEN. LAFAYETTE IN 1788 CONGRESS APPROPRIATED MONEY AND ENGAGED TWO STONE MASONS FROM PORTLAND TO BUILD THE STRUCTURE WHICH WAS COMPLETED IN 1790 FIRST LIGHTED ON JAN 10 1791 WITH THE USE OF WHALE OIL LAMPS LATER CHANGED TO MEROSENE TODAY THE LIGHT ISAN AIRPORT TYPE BEACON WITH A 1000 WATT LAMP. ALENS OF 200. 000 CANDLEPOWER AND VISIBLE FOR APPROXIMATELY 20 MILES
