Map of Grand Marais Harbor dated September 1883 shows breakwater, dredged area and soundings reduced to low water. The harbor's western point is named Howenstine's Point and the eastern point is named Mayhew's Point both after Grand Marais settlers. Structures, post office, docks, fish house and stables are identified along the harbor.
Map issued ""to accompany C.J. Allen's Report of Operations for year ending June 30, 1885."" Shown are harbor depths, area excavated in 1884, and area excavated up to and including September 1883.