Pentwater South Pierhead Light

Pentwater South Pierhead Light is a lighthouse in Oceana County, Michigan. Michigan has 124 lighthouses on record at Wayfarrow, 4 of them in Oceana County.

It was built in 1937, in the interwar years, making it the 83rd oldest of the 89 in Michigan with a recorded construction date; the tower stands about 34 feet tall (57th tallest of 63 measured in Michigan); its light sits 48 feet above the water; the light characteristic is recorded as Fl R 4s (a red flash every 4 seconds), with a range of about 4 nautical miles; it guards Lake Michigan; the structure is built of steel.

Status check, 2026-11: A red steel skeletal tower placed in June 1937 to replace the 1873 wooden tower; it counts toward the listed Navigation Structures at Pentwater Harbor. It carries the heritage designation National Register of Historic Places contributing property. It stands at 43.7817° N, 86.4442° W.

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