NGS Calibration Baseline – Disk 430 M
Posted by: Groundspeak Premium Member 8Nuts MotherGoose
N 37° 51.800 W 089° 13.956
16S E 303608 N 4193000
This disk is one of the points in the National Geodetic Survey Gerstenschlager Calibration Baseline.
Waymark Code: WM98Y3
Location: Illinois, United States
Date Posted: 07/15/2010
Published By:Groundspeak Premium Member Ernmark
Views: 2
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Although the disk is stamped 430 M, it is located southerly along the old railroad bed 220 meters from Disk 0 M.
From the NGS Web Site:
THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430 M 1988" SET IN THE TOP OF A 40 CM (16 IN) DIAMETER CONCRETE POST FLUSH WITH THE GROUND. IT IS 3.8 M (12.5 FT) WEST OF THE CENTERLINE OF OLD HIGHWAY 51, AND 1.0 M (3.3 FT) EAST OF A WITNESS POST.
Condition: Mark found in good condition

Designation: 450 M

Benchmark Agency: National Geodetic Survey

Monumentation type: other (not any of the below)

Monumentation type (if other): Calibration Baseline

County: Jackson

USGS 7.5' Topographic Quadrangle Name (optional): De Soto

Find type: Found by luck/skill/knowledge

Web address of this benchmark's datasheet (optional): [Web Link]

Benchmark Agency (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:
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  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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