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Details for Benchmark: LY1165

N 41° 19.417 W 075° 12.250 (NAD 83)

Altitude: 1773.7

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

Location:
In PIKE county, PA View Original Datasheet
Designation:
U 234
Marker Type:
bench mark disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

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In good condition

Still in good condition. There is also an Orienteering Course nearby made as a Girl Scout project. Pretty cool idea, and a nice place for it.

[Photos:]
photoLY1165
LY1165

Found in good condition.

[Photos:]
photoLY1165 U 234

This log is to provide some addition information, mainly additional GPSr coordinates, to the logs posted earlier by Rich in NEPA and Zhanna. Please see their logs for more complete info.
I used a Magellan Explorist 100 with the following map units: North Referance-Magnetic North, Map Datum WGS 84. These are the same units used on GEOCACHING.COM.

Coordinates on July 9,2005
N 41º 19.423
W 75º 12.241

Coordinates on July 20,2005
N 41º 19.424
W 75º 12.244

[Photos:]
photoLY 1165 U234
N 41° 19.425 W 075° 12.244

On a bitter cold, but pleasantly still and partly sunny day, Rich and I began our benchmark hunting in Promised Land with this mark. Even with a bit of snow on the ground, it was an easy find on a large boulder about 50 yards west of the parking area for the Rock Oak Trail in Promised Land State Park; the historic description leads directly to the mark and needs no updating. The disk is in good condition with both the date and designation legible.

[I]A report on the condition of this mark has been submitted to NGS.[/I]

Zhanna

[Photos:]
photoLY1165, Pike County, PA
photoEye-level view of the mark on the boulder.
photoFacing NE.
N 41° 19.423 W 075° 12.246

[B]Recovered in good condition.[/B]

This second order vertical control station is set in the top of an outcropping boulder roughly 50 yards west of a small parking area at the start of Rock Oak Trail. The historical description leads reliably to the station. At the station a Garmin GPSmap76 receiver with remote active antenna was used to record WAAS-corrected coordinates which were 41 feet from the scaled coordinates listed in the NGS datasheet. The mark is well exposed, in good condition, and the stamped designation is legible. ~Rich in NEPA~

[Photos:]
photoLY1165, "U 234 1959," Pike County, PA.
photoGPSr and the station mark.
photoEyelevel view of station mark and setting.
photoOrientation view, facing south and North Shore Rd.

Found today in Promised Land State Park.

[Photos:]
photoPARK SIGN
photoDISK AND GPS
photoROCK WHERE DISK IS
photoDISK

Documented History (by the NGS)

01/01/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 0.5 MI NE FROM PROMISED LAND. 0.35 MILE NORTH ON STATE HY. 390 FROM THE PROMISED LAND STATE RANGER HEADQUARTERS THENCE 0.15 MILE EAST ON NORTH SHORE RD., SET IN TOP AND 2 FEET NORTH OF THE SOUTH EDGE OF A 11 FOOT BY 4 FOOT BY 1 1/2 FOOT BOULDER, 82 FEET NORTH OF THE CENTERLINE OF THE ROAD, ABOUT 50 YARDS WEST OF ROCK OAK TRAIL (GAME TRAIL 1), ABOUT 1 FOOT ABOVE THE GROUND, ABOUT 1 FOOT ABOVE THE ROAD.

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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