Historic photograph of the Seal Cove Mill (Courtesy of the William O. Sawtelle Curatorial Center, Acadia National Park).

Historic photograph of the Seal Cove Mill (Courtesy of the William O. Sawtelle Curatorial Center, Acadia National Park).

Historic photograph of the Seal Cove Mill (Courtesy of the William O. Sawtelle Curatorial Center, Acadia National Park).