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Details for Benchmark: LY2742

N 41° 03.745 W 075° 40.888 (NAD 83)

Altitude: 1825

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

Location:
In CARBON county, PA View Original Datasheet
Designation:
HICKORY
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Please see the complete recovery, including text and photos, at my website: [b][url=http://surveymarks.planetzhanna.com/surveymarks/ly2742/]LY2742 - HICKORY[/url][/b].

Zhanna

This entry was edited by Zhanna on Friday, 07 December 2012 at 02:39:17 UTC.

Documented History (by the NGS)

01/01/1958 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (JMR) THE STATION IS LOCATED ABOUT 5-1/2 MILES EAST OF WHITE HAVEN, ABOUT 5 MILES SOUTHWEST OF BLAKESLEE CORNERS AND ABOUT 1-1/2 MILES SOUTH OF STATE HIGHWAY 940 AND IS ON THE HIGHEST POINT OF A TIMBER COVERED HILL. IT IS AT THE NORTHERN EDGE OF THE HICKORY RUN STATE PARK AND IS ON STATE PARK PROPERTY. IT IS 14 FEET NORTH OF AN 18-INCH BIRCH TREE AND 4 FEET NORTH OF A STANDARD METAL WITNESS POST. TO REACH THE STATION FROM THE EAST END OF THE BRIDGE ACROSS THE LEHIGH RIVER ON STATE HIGHWAY 940 IN WHITE HAVEN, GO EAST ON STATE HIGHWAY 940 FOR 0.05 MILE TO THE JUNCTION OF ROUTE 13018 AND STATE HIGHWAY 940. TURN RIGHT ON ROUTE 13018 AND GO SOUTH AS PER SIGN HICKORY RUN PARK 5 FOR 1.86 MILES TO A T-ROAD INTERSECTION ON THE LEFT. CONTINUE SOUTHEAST ON ROUTE 13018 FOR 3.43 MILES TO THE HICKORY RUN STATE PARK OFFICE ON THE RIGHT. CONTINUE STRAIGHT AHEAD, EAST, ON THE MACADAM ROAD FOR 0.58 MILE TO A GRAVELED ROAD ON THE LEFT. TURN LEFT AND GO NORTH ON THE GRAVELED ROAD AS PER SIGN BOULDER FIELD FOR 0.42 MILE TO A Y-FORK. TAKE THE LEFT FORK, THE MAIN TRAVELED ROAD, AND GO 2.13 MILES TO THE PENNSYLVANIA TURN PIKE UNDERPASS, CONTINUE STRAIGHT AHEAD ON THE MAIN TRAVELED ROAD FOR 0.6 MILE TO A CROSSROAD AND SIGN FOURTH RUN SHELTER. TURN LEFT AND GO NORTH ON A GRAVELED ROAD AS PER SIGN FOURTH RUN SHELTER FOR 0.46 MILE TO THE SHELTER ON THE RIGHT, CONTINUE STRAIGHT AHEAD ON THE MAIN TRAVELED ROAD FOR 0.93 MILE TO A TRIANGULAR BLAZED TREE AND A DIM TRACK ROAD ON THE RIGHT. TURN RIGHT AND FOLLOW THE TRACK ROAD THROUGH THE WOODS FOR 0.37 MILE TO THE TOP OF THE HILL AND THE STATION. A 4-WHEEL DRIVE VEHICLE IS REQUIRED TO DRIVE THE LAST 0.37 MILE TO THE STATION. THE STATION MARK, A STANDARD DISK STAMPED HICKORY 1958, IS SET IN THE TOP OF A SQUARE CONCRETE MONUMENT PROJECTING ABOUT 2 INCHES ABOVE THE SURFACE OF THE GROUND. REFERENCE MARK 1, A STANDARD DISK STAMPED HICKORY NO 1 1958, IS SET IN A DRILL HOLE IN TOP OF A BOULDER PROJECTING ABOUT 3 INCHES ABOVE THE SURFACE OF THE GROUND. REFERENCE MARK 2, A STANDARD DISK STAMPED HICKORY NO 2 1958, IS SET IN A DRILL HOLE IN TOP OF A BOULDER PROJECTING ABOUT 6 INCHES ABOVE THE SURFACE OF THE GROUND. THE MICRO WAVE TOWER MAY BE USED AS AN AZIMUTH MARK WITH SOME CLEARING OF SMALL TREES. HEIGHT OF LIGHT ABOVE STATION MARK 27 METERS.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in September 1999.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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