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Details for Benchmark: JV2089

N 39° 59.883 W 077° 24.533 (NAD 83)

Altitude: 2009.99

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

Location:
In ADAMS county, PA View Original Datasheet
Designation:
M 159
Marker Type:
bench mark disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

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Pretty easy find, but had to move the moss again.

N 39°59.904 W 077°24.563

Recovered in good condition - disk is about 3 ft. N of what the NGS may describe as a "quintuple-trunk tree"....

[Photos:]
photoM 159 (JV2089) disk - Cumberland County, PA
photoM 159 (JV2089) setting - view looking S
Note 5-trunk tree(s)

Even though I don't live too far away, I just
got around to finding this BM.

Greetings Geocachers/Benchmarkers,

After just a bit of misinformation, I found this benchmark with very little difficulty. It’s in terrific shape and exactly where it’s supposed to be. The coordinates are quite sufficient to locate the benchmark.

Happy Benchmarking,
Ghosthunter
Gettysburg, PA

Found this one pretty easily. It was partially obscured by moss growing over part of the disk. This disk is on private property. The owner lives in the house SE of the disk location.

[Photos:]
photoJV2089 as found, SE of Shipppensburg, PA
photoJV2089 after clean up, SE of Shippensburg, PA
photoJV2089 the boulder disk is set in, SE of Shippensburg, PA

Documented History (by the NGS)

1/1/1942 by CGS (MONUMENTED)
1/1/1952 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1952 9.2 MI SE FROM SHIPPENSBURG. IN ADAMS COUNTY, 0.2 MILE SOUTH ALONG THE PENNSYLVANIA RAILROAD FROM THE FIRST NATIONAL BANK AT SHIPPENSBURG, CUMBERLAND COUNTY, THENCE 0.7 MILE EAST ALONG THE READING COMPANY RAILWAY, THENCE 1.9 MILES SOUTHEAST ALONG PAVED ROAD 21006, AND THENCE, 6.4 MILES SOUTHEAST ALONG THE SHIPPENSBURG ROAD, AT THE INTERSECTION OF THE SHIPPENSBURG ROAD AND RIDGE ROAD LEADING NORTH, 62 FEET SOUTHEAST OF THE INTERSECTION, 48 FEET SOUTH OF THE CENTERLINE OF THE SHIPPENSBURG ROAD, IN THE TOP OF AN OUTCROPPING BOULDER, AND 0.8 FOOT ABOVE THE GROUND. A STANDARD DISK, STAMPED M 159 1942.

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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