Treacherous shoals are marked by this 1901 lighthouse near Hog Island.  There was a small light boat on the spot that the Old Colony Steamship Company used to aid their vessels.  A larger boat, the Eel Grass Shoal Lightship, LV 12, was used beginning in 1886.

This 1901 Lighthouse replaced a light boat on the Hog Island Shoals. (Image G. Schmidt collection)