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DETROIT RIVER. 91 steer N. E. 4% E. through the channel indicated by the buoys, leaving the light vessel on the starboard hand, after which the course for the dredged channel at a point 2% miles S. W. 34 S. from the southern entrance to St. Clair Flats ship canal will be northeast. Wayne Street Buoy.--Red and black horizontal stripes spar buoy, in 15% feet of water. Marks a 15%-foot patch, 1,000 feet from American Dock line. West end of Majestic Building, N. % W. Flagstaff on Belle Isle -E. N. EE. 36 E. Belle Isle---Red and black horizontal stripes, spar buoy, in 13 feet of water. Marks the end of the shoal off the foot of Belle Isle. There are 3 fathoms of water close to the buoy. Walker's Mill (Canada), S. S. E., 800 yards. : Scott's Middle Ground (Lower End) No. 2.--Red spar buoy in 11 feet of water. Marks the northwest point of Scott's middle ground. When abreast of the Belle Isle buoy, a N. E. % E. course will lead clear of the southwest end of the middle ground. Intersection of Belle Isle Bridge with shore line of Island, S. % W., 2,400 feet. Pivot pier Belle Isle Bridge, W. by S., 1,200 feet. | Scott's Middle Ground (Middle) No. 4.--Red spar buoy in 24 feet of water. Marks the northwest side and near the center of the shoal. North point of Belle Isle, E. by N., 1 mile. Intersection of Belle Isle bridge with shore fine of island, S. S. W. 4% W., 5/6 mile. | Scott's Middle Ground (Upper End) No. 6.--Red spar buoy in 18 feet of water. On the north point of the middle ground. Mouth of Connor aiene side), E. N. E.,.136 miles. - North point of Belle [ste 2 ae 7% mile. BELLE ISLE LIGHT-STATION.--A fixed red light, 4th order, visi- ble 1234 miles. Red, square tower, 36% feet high, with dwelling attached, both of red brick. On the southeast point, head of Belle Isle, Detroit river. Marks the head of Belle Isle and the channel between it and the foot of Isle aux Péches. Windmill Point light, N. E. % E., 2 miles. Belle Isle--Red and black horizontal stripes, spar buoy in 16 feet of water, marks the extreme easterly point of the shoal off the head of Belle Isle, and the dividing point of the channels on each side of the island. Windmill Point light, N. E. by E., 1% mules Isle aux Peches, No. 8.--Red spar buoy, in 11 feet of water; marks the extreme point of the shoal off the west end of Isle aux Péches. The five- fathom channel between the islands is about 350 yards wide. Windmill Point light, N. E. 1% miles. WINDMILL POINT RANGE LIGHTS.--Two fixed red lights. The front light is a lens lantern, and the rear light a 6th order lens; they are 437 feet apart, on a line nearly S. W. The structures are square, pyramidal, wooden skeletons, upper part enclosed, lanterns black. The front tower is red, and the rear tower is white. The front tower is 34 feet and the rear tower 49 feet above the lake level. The lights are a guide between Belle Isle and Isle aux Péches. The range passes about 650 feet south- easterly of Belle Isle light. Belle Isle light-house, S. W. % W., 2 miles. WINDMILL POINT LIGHT-STATION.--A fixed white light, varied every fifteen seconds by a red flash, 4th order, visible 14 miles. White, brick tower, 51 feet high, connected by covered way with red brick dwell- ing. On the north side of the Detroit river entrance to Lake St. Claw. Head of Detroit River.--Black spar buoy, in 16 feet of water, at the head of the river bed, on the north side of channel, and where the Grosse Pointe flats commence. Windmill Point light, W. by S 3% 5S: om =aee Grosse Pointe church, N. % W., 134 miles.