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This is a list of all lighthouses in the U.S. state of Michigan as identified by the United States Coast Guard. Michigan is home to lights on four of the Great Lakes, Lake St. Clair and connecting waterways. The first lighthouse in the state, Fort Gratiot Light, was erected in 1825. It is still active. [1]
VII, Great Lakes; Each volume of the Light List contains aids to navigation in geographic order from north to south along the Atlantic coast, from east to west along the Gulf coast, and from south to north along the Pacific coast. It lists seacoast aids first, followed by entrance and harbor aids listed from seaward.
This is a list of all lighthouses in the U.S. state of Wisconsin as identified by the United States Coast Guard and other historical sources.. If not otherwise noted, focal height and coordinates are taken from the United States Coast Guard Light List, [1] while location and dates of activation, automation, and deactivation are taken from the United States Coast Guard Historical information ...
The Rock of Ages Light is a U.S. Coast Guard lighthouse on a small rock outcropping (50 by 200 feet (15 m × 61 m)) [9] approximately 2.25 miles (3.62 km) west of Washington Island and 3.5 miles (5.6 km) west of Isle Royale, in Eagle Harbor Township, Keweenaw County, Michigan (see map below).
Satellite view of Marblehead Light by Google Maps. Light List, Volume VII, Great Lakes (PDF). Light List. United States Coast Guard. 2007. "Historic Light Station Information and Photography: Ohio". United States Coast Guard Historian's Office. Archived from the original on May 1, 2017. Wobser, David, Marblehead Light, at Boatnerd.com
It has been an active aid to navigation since 1996, but is not listed in Volume VII United States Coast Guard light list. The lantern room was removed in 1913 but replicated in 1994. The Fresnel lens was replaced by a 300 mm Tidaland Signal plastic lens – a medium range lens commonly used on the Great Lakes. [7]
In 1968, the light was replaced with a DCB-224 aero beacon [19] manufactured by the Carlisle & Finch Company. [20] According to Volume 7 of the U.S. Coast Guard light list, it was visible for a distance of 26 nautical miles (48 km; 30 mi) in clear weather conditions, and had two unevenly spaced eclipses, and two flashes within every 20 second ...
The light shines an average of 17 nautical miles (31 km; 20 mi). The original lens was loaned by the US Coast Guard to the National Museum of the Great Lakes. In early 2015, the lens was moved back to Two Harbors and is now on is now on display in the dining room of the Keeper's Quarters. [6]