a standardized design developed for the U.S. Bureau of Lighthouses during the 1930s. The first story is a rectangle with slightly clipped corners (echoing the shape of the lower fog signal building). Above this, the four sides of the tower curve inward and upward to form a tall narrow rectangular tower. The upper stories of the tower are pierced with port lights. The top of the tower is a flat roof, and supports an open-air VRB-25 marine beacon. See also References External links Keweenaw Waterway Upper Entry Light by Dave Wobser Keweenaw Upper Entrance Light at Seeing The Light by Terry Pepper Lighthouses completed in 1950 Lighthouses on the National Register of Historic Places in Michigan National Register of Historic Places in Houghton County, Michigan 1920 establishments in Michigan