North Manitou Shoal (Michigan)
2004 Reference USCG Light List - Vol. VII: 18340
2004 Characteristic
2004 Optic and Structure
N/A | N/A | 79 | White square structure on concrete base. |
2004 Fog Signal
HORN: 2 blasts ev 20s (2s bl-2s si-2s bl-14s si). | None |