South Manitou Island was popular in the 19th and 20th centuries as a harbor and fueling station. With the completion of the Erie Canal in 1826, the development of commercial navigation on the Great Lakes increased rapidly. The Manitou Passage was the most important route for schooners and steamers traveling the 300 mile length of Lake Michigan. The island was a stop for early mariners between
Chicago and the
Straits of Mackinac. To guide storm-driven ships, Congress appropriated $5,000 in 1838 for the construction of a lighthouse. Construction began in 1839, but very little is known about this first lighthouse on South Manitou Island. The specifications were the same as for the Old Presque Isle lighthouse, which included a 30-foot circular tower and a stone keeper's dwelling, but written accounts describe a -story house with a light tower on one gable end. No sketches or photos exist to determine what was actually built. The location of the light was on a 30-foot sandy knoll near the shore close to the location of the present lighthouse, but the exact location is not known. In 1858, the U.S. Lighthouse Establishment recognized the need for greater safety and replaced this house with a two-story brick residence with a 35-foot tower on top. The tower housed a Fourth Order Fresnel lens. A fog signal building was added and both structures still stand today. The increased shipping traffic brought changes and in 1871, a 100-foot tower was built. The tower is 18 feet in diameter at the base. The walls are hollow and 5 feet thick at the base tapering to 3 feet thick at the top. A passageway was added connecting the tower to the keeper's dwelling. A Third Order Fresnel lens from Paris was installed with a 3-wick lamp that had a range of 18 miles. In 1875, the first steam fog signal on Lake Michigan was installed replacing the fog bell. The 100 foot
lighthouse was in operation from 1871 to 1958. The lighthouse is still in good condition. Recent efforts have restored its light tower to operational status for the summer months. In 1901, the
United States Life-Saving Service built a station on the island. The USLSS became part of the United States Coast Guard in 1915. The station was permanently closed in 1958. This station is now the island's ranger station and is not open to the public. ==Shipwrecks==