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Details for Benchmark: KY0134

N 40° 48.167 W 080° 07.700 (NAD 83)

Altitude: 928.7

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

Location:
In BUTLER county, PA View Original Datasheet
Designation:
Y 201
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Found as described.

[Photos:]
photoBM KY0134

I've never done a benchmark before. Thanks to TDB1977 for showing us how to do these!

[Photos:]
photo

Out caching with a group. TDB1977 just taught us how to find benchmarks.

[Photos:]
photo

Pretty easy find today. It's in great shape!

[Photos:]
photo

Been past here multiple time and didnt even know this was here. Mark in in good shape

Passed many times before but never noticed until started caching.

[Photos:]
photoKY0134

The mark is in good condition at N 40° 48.157 W 080° 07.700.

[Photos:]
photoKY0134(Y 201) - Harmony PA
photoKY0134 - Looking N from mark
photoKY0134 - Looking W on Mercer St.
photoKY0134 - Looking S toward mark

Found for the benchmark contest.

[Photos:]
photoKY0134
photoWide View

Found this as advertised in beautiful shape on the side of Grace Church in Harmony.

[last edit: 7/31/2002 7:33:17 PM PST]

Documented History (by the NGS)

01/01/1954 by CGS (MONUMENTED)
01/01/1960 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1960 AT HARMONY. AT HARMONY, LOCATED ALONG MERCER STREET BETWEEN LIBERTY AND MAIN STREETS, SET VERTICALLY IN THE EAST FACE OF NORTH WING OF GRACE REFORMED CHURCH, 1 FOOT SOUTH OF NORTHEAST CORNER OF NORTH WING OF BUILDING AND 1.8 FEET ABOVE SIDE WALK.
01/01/1983 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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