Dyce Head Light stands at the southern tip of the Castine peninsula, guiding vessels toward Castine Harbor and the mouth of the Penobscot River. Established in 1828 and built in 1829, it served a busy maritime center tied to fishing, shipbuilding, and the lumber trade. The 42-foot rubble-stone tower and keeper’s dwelling formed a station that remained active for more than a century despite criticism of its location. After electrification and automation in 1935, the station was discontinued in 1937 and replaced by a nearby skeleton tower. When that tower was destroyed in 2007, the historic lighthouse was returned to service in 2008 and remains both an active beacon and a preserved landmark.