TT 21 E
Posted by: 
msrubble
N 43° 56.619 W 090° 12.853
15T E 723562 N 4869387
USGS benchmark at the Lone Rock School, northeast of Camp Douglas, Wisconsin.
Waymark Code: WMM2Z0
Location: Wisconsin, United States
Date Posted: 07/11/2014
Views: 3
Third order vertical control mark set in 1930. It is set in a concrete sidewalk, flush with the ground.
Elevation is 903.425 feet. Horizontal coordinates are from my handheld consumer-grade GPS (HH2). The coordinates given on the data sheet are scaled, with degree of accuracy not available.
It is in the east half of Section 14, Township 17 N, Range 2E.
This USGS benchmark is not in the NGS database, but is in the Wisconsin State Cartographer's Office geodetic control database.
BM, LONE ROCK SCHOOL, 2 FT W. AND 12 FT S. OF NW. COR. OF; E. HALFSEC. 14, T. 17 N., R. 2 E.; IN CONCRETE WALK ON W. SIDE OF SCHOOL;STANDARD TABLET STAMPED "TT 21 E 1930":
Condition: Mark found in good condition
Designation: TT 21 E
Benchmark Agency: U.S. Geological Survey
Monumentation type: BENCH MARK (or B.M.) Disk
County: JUNEAU
USGS 7.5' Topographic Quadrangle Name (optional): NEW LISBON NORTH
Find type: Found by luck/skill/knowledge
Web address of this benchmark's datasheet (optional): [Web Link]
Benchmark Agency (if other): Not listed
Monumentation type (if other): Not listed
Special category (optional): Not listed
Special Category (if other): Not listed
NGS PID: Not listed
Local database's URL (optional): Not listed
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Visit Instructions:
- A closeup photo of the mark taken by you is required.
- 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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