Inventory of Historic Light Stations--Michigan--Rock of Ages Light

Inventory of Historic Light Stations
Michigan Lighthouses

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ROCK OF AGES LIGHT

State: MICHIGAN
Location: OFF ISLE ROYALE / LAKE SUPERIOR
Nearest City: HOUGHTON
County: KEWEENAW
U.S.C.G. District: 9
Year Station Established: 1908

NPS photo by Sharon Frakes, 1991

Existing Historic Tower:

Year Light First Lit: 1908
Is the Light Operational? YES
Date Deactivated: N/A
Automated: 1978
Foundation Materials: CONCRETE PIER/STEEL CAISSON
Construction Materials: STEEL/MASONRY/CONCRETE
Markings/Patterns: WHITE W/BLACK BASE & LANTERN
Shape: CYLINDRICAL "BOTTLE SHAPE"
Relationship to Other Structures: INTEGRAL
Tower Height: 117
Original Optic: SECOND ORDER, FRESNEL
Year Original Lens Installed: 1910
Present Optic: 190 MM
Year Present Lens Installed: 1985
Height of Focal Plane: 130
Fresnel Lens Disposition: ORIGINAL REVOLVING LENS ON EXHIBIT AT WINDIGO INFORMATION STATION AT ISLE ROYALE NATIONAL PARK
Has tower been moved? NO

Previous Tower(s): N/A

Modern Tower? NO

Existing Sound Signal Building? NO

Existing Keepers Quarters? YES

Year Constructed: 1908
Number of Stories: 0
Architectural Style: INTEGRAL TO TOWER
Construction Materials: STEEL/MASONRY/CONCR

Other Structures: NONE

Current Use: ACTIVE AID TO NAVIGATION IN NATIONAL PARK

Owner/Manager: U.S. COAST GUARD

Open to the Public? YES (Go to Lighthouses to Visit for access information)

Web Site: ISLE ROYALE NATIONAL PARK

National Register Status: LISTED; Reference #83000881
Name of Listing: ROCK OF AGES LIGHT STATION (U.S. COAST GUARD/GREAT LAKES TR)
On State List/Inventory? NO; Year Listed:

HABS/HAER Documentation? YES MI-388 (WASO)

Miscellaneous:
MAJOR ENGINEERING FEAT BECAUSE OF ISOLATED LOCATION

Last Modified: Fri, Apr 19 2002 8:16:02 am EDT
JMP

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