Skip to Content

Details for Benchmark: KX1601

N 40° 51.383 W 079° 53.467 (NAD 83)

Altitude: 1012.81

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

Location:
In BUTLER county, PA View Original Datasheet
Designation:
1013.80
Marker Type:
chiseled square
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

The bridge and its footings have been replaced.

found this one after work in butler....will upload picture at a later date when i can pull them from my camera...

Found for the benchmark contest.

[Photos:]
photoKX1601
photoKX1601 CloseUp

#5 and had to get out of the car for this one. Brrrr chilly day for it too.

N 40° 51.372 W 079° 53.491

The note states "it is doubtful that this mark was correctly identified in 1931". We agree...and believe the mark to be in the northeast corner of the southwest footing of the iron support of the overhead bridge, and in the form of a chiseled cross. This bridge is scheduled for demolition and replacement so we wanted to log this find before it's too late. There is a painted "BM" on the iron support above the mark which also gives credence to this being the benchmark. Please see the pictures.

[Photos:]
photochiseled cross
photopainted "BM" above mark

Documented History (by the NGS)

Unknown by BORR (MONUMENTED)
01/01/1944 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1944 AT BUTLER. AT BUTLER, BUTLER COUNTY, ACROSS THE TRACKS FROM THE BAGGAGE ROOM OF THE BALTIMORE AND OHIO RAILROAD STATION AND IN THE SOUTHWEST CORNER OF THE NORTHEAST FOOTING OF THE IRON SUPPORT OF THE OVERHEAD BRIDGE. A CHISELED SQUARE. NOTE-- IT IS DOUBTFUL THAT THIS MARK WAS CORRECTLY IDENTIFIED IN 1931.

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 1992. * This is a POSTED BENCH MARK height. Code A indicates a distribution rate of 0.0 thru 1.0 mm/km.
  • 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.

Advertising with Us

Return to the Top of the Page