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Details for Benchmark: KU4030

N 40° 51.344 W 073° 55.588 (NAD 83)

Altitude: 0

Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)

Location:
In NEW YORK county, NY View Original Datasheet
Designation:
NEW YORK G WASH HS CUPOLA
Marker Type:
cupola
Setting:
setting not listed - see description
Stability:

Must Read!

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Saw this cupola while caching in the area with Schwandt.

[Photos:]
photoKU4030

On a Geocaching trip and observing a few Geological Survey Benchmarks as we go.
Old Professor - Tipton, Mo.

Found in good condition as described.

[Photos:]
photoKU4030 - New York George Washington HS Cupola

Found in good condition as described.

This high school is beautiful classic building in a stunning setting. The back (east) side overlooks the Harlem River with the Bronx and Westchester beyond. You can see this school when you are driving along the Major Deegan Expressway on the opposite side of the river.

[Photos:]
photoKU4030 George Washington High School, NYC
photoKU4030 George Washington High School, NYC

Documented History (by the NGS)

01/01/1930 by CGS (FIRST OBSERVED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1930 (CAE) STATION IS THE FINIAL ON THE CUPOLA OF THE GEORGE WASHINGTON HIGH SCHOOL BUILDING AT ONE HUNDRED AND NINETY-FIRST STREET AND AMSTERDAM AVENUE, NEW YORK CITY. NOT MARKED. TRIANGULATION STATION GEORGE SERVES AS A REFERENCE MARK.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in January 1999.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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