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88 THOMPSON'S COAST PILOT. Chamber's Island with the Door Bluff, 5 or 6 miles; thence WSW for the NW point of Chamber's Island, 18 miles; thence as directed for Long Tail Point. In running out through Death's Door, bound to the southward, steer out SH, leaving Plum Island and Pilot Island to port, at the distance of 7 to 1 mile. Run on this course until you shut in the Ship or Spider Islands with the point of the False Door; thence S¢W for Chicago. A Lighthouse is to be erected on Ghats? s Island, as a guide for the west channel. From Bailey's Harbor to Pilot Island Lighthouse, 18 miles NNE. The Whale's Back Shoal bears from Death's Door WNW;; is a direct line with Cedar River, and about half way across the bay ; 62 feet water on it. | Buoys are to be placed on the Whale's Back Shoal this season and every season hereafter. Norz.--At the commencement of a SE wind, blowing fresh, there is always a strong current setting into Green Bay, down along the west shore and among the Beaver Islands. Good anchorage under the south side of Chamber's Island, in 4 to 5 fathoms water, sandy clay. LIGHTHOUSES ON LAKE MICHIGAN AND GREEN BAY; WITH DIRECTIONS FOR HARBORS, ETC. Cuicaco Harzor.--The new light at the east end of the North Pier is a fixed white light, and can be seen 15 nautical miles. The best holding ground outside is from 2 to 1 mile north of the North Pier, 64 to 7 and 9 fathoms water. The North Chan- nel is now used, and is being dredged from time to time, and no correct depth of water can be at present given; but it is hoped that it will soon be in a better condition than it has been for years past. The anchorage is good in 4 to 5 fathoms as far north as Grose Point. Port Clinton has a dock and pier ; 22 miles make of Chicago.