Gray's Reef

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Source of Image: Karl Agre (USA)
Date of Image: Unknown


International Designation Number:



Latitude 45 45' 55'' N
Longitude 85 09' 11'' W
Body of water Lake Michigan.
Height Above Water 65ft


Date of Establishment: 1936
Date Light First Lit: 1936
Designer Greiling Brothers Company.
Is structure still operating? Yes. Automated 1976.
Characteristic Red flash every 10sec.