Details for Benchmark: KW1399

N 40° 51.833 W 076° 47.500 (NAD 83)

Altitude: 448.85

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

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

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Navigation

Found it 08/08/2019 MrBee&WillowTree found KW1399   Visit Log

Found while in Sunbury for work training. All is well with this one!

[Photos:]
photoLocation
photoMarker
Found it 06/12/2009 Rocklock found KW1399   Visit Log

Found it
Found it 05/04/2008 mloser found KW1399   Visit Log

Hard to miss, and lucky they didn't cover it when they built an access ramp.
Some guy on a motorcycle kept watching me as I looked at the corner of the building. Maybe he thought I was a terrorist or something. I am sure the Sunbury PO would be a prime target.
Found it 04/11/2007 Team_Merchlinsky found KW1399   Visit Log

This was our first benchmark find, and we are going to be looking for more, we really just were looking for caches, but this adds something extra to the hunt.

Found it 03/01/2007 pabob101 found KW1399   Visit Log

Found it with no problems. Still attached to wall
Found it 03/01/2007 kkipp9 found KW1399   Visit Log

It is still there and always will be until the building goes.
Found it 09/30/2006 sclave found KW1399   Visit Log

Had to wait for train to pass to get to it!
Found it in good shape as described!
Sclave

[Photos:]
photoBM & post office on otherside of tracks!
photoKW1399 close-up!
Found it 09/23/2006 Troutmans found KW1399   Visit Log

Found it on my lunch hour, easy find.
Found it 08/03/2006 team erdinger found KW1399   Visit Log

Hasn't moved yet and still sticking to The Wall.

[Photos:]
photoJust another look.
Found it 07/30/2006 Mooneymonkshine found KW1399   Visit Log

In very good condition.
Found it 06/25/2006 Ernmark found KW1399   Visit Log

Recovered in good condition...also in the middle of a rain storm.

[Photos:]
photoSUNBURY (KW1399) disk - Northumberland Co., PA
photoSUNBURY (KW1399) setting - view looking WNW
Found it 04/03/2006 flintlockmastiffs found KW1399   Visit Log

Found it today in the middle of a rain storm.
Found it 12/10/2004 ChilliWilli found KW1399   Visit Log

Benchmark in good condition.

ChilliWilli

[Photos:]
photoBench Mark KW1399
Found it 04/03/2004 GPSammy found KW1399   Visit Log

Yep still there. :-)
Found it 03/19/2003 PSUPAUL found KW1399   Visit Log

Found it in the corner of the post office like stated. It is in good shape.

[Photos:]
photoSunbury Post Office

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
01/01/1941 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1941 AT SUNBURY. AT SUNBURY, AT THE POST OFFICE, ABOUT 100 FEET NORTH OF THE CENTERLINE OF PENNSYLVANIA AVENUE, 40 FEET WEST OF THE CENTERLINE OF NORTH THIRD STREET, IN THE LIMESTONE BASE OF THE EAST WALL OF THE BUILDING, 6 INCHES NORTH OF THE SOUTHEAST CORNER, AND ABOUT 2.5 FEET HIGHER THAN THE GROUND. A STANDARD DISK, STAMPED SUNBURY 1934.

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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