Copper Harbor Astronomic Latitude Mark
Posted by: Amygdaloid
N 47° 28.133 W 087° 51.954
16T E 434747 N 5257635
Mark on rock on Lake Superior Shore, marked as follows:
Lat. +
47deg23' 11"
O.B.W U.S.L.S.
1864
Waymark Code: WMP28P
Location: Michigan, United States
Date Posted: 06/14/2015
Views: 5
Copper Harbor (Fort Wilkins), 1864.— Observations for latitude were made on a pine post situated just north of Fort Wilkins, about one mile east of Copper Harbor, Keweenaw County, Michigan. A stone post marked "S", just outside the fort fence,is 233.9 feet south of the observatory post, and a cross on the rock near the water's edge is 515.9 feet north. Observations performed by O.B. Wheeler of United States Lake Survey.
Condition: Mark found in good condition
Designation: Lat 47 23 11
Benchmark Agency: U.S. LAKE SURVEY
Monumentation type: other (not any of the below)
Monumentation type (if other): Markings chiseled on bedrock
County: Copper Harbor, Mi
USGS 7.5' Topographic Quadrangle Name (optional): Fort Wilkins
Find type: Found by luck/skill/knowledge
Benchmark Agency (if other): Not listed
Special category (optional): Not listed
Special Category (if other): Not listed
Web address of this benchmark's datasheet (optional): Not listed
NGS PID: Not listed
Local database's URL (optional): Not listed
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Visit Instructions:
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- A 'distant' photo including the mark in the view is highly recommended. Include the compass direction you faced when you took the picture.
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