TT 21 E
Posted by: Groundspeak Premium Member msrubble
N 43° 56.619 W 090° 12.853
15T E 723562 N 4869387
Quick Description: USGS benchmark at the Lone Rock School, northeast of Camp Douglas, Wisconsin.
Location: Wisconsin, United States
Date Posted: 7/11/2014 10:11:59 PM
Waymark Code: WMM2Z0
Published By: Groundspeak Premium Member Ernmark
Views: 3

Long Description:
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

Visit Instructions:
  1. A closeup photo of the mark taken by you is required.
  2. 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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