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Details for Benchmark: LY2680

N 41° 24.901 W 075° 08.062 (NAD 83)

Altitude: 1650

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

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

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N 41° 24.902 W 075° 08.064

[i]Note: this search is not recommended on hot, humid days![/i] Recovering this station and its associated marks was the main goal of our Sunday afternoon adventures, and it became quite a challenge. The hike to the station mark was pleasant. Along the way we noticed many colorful mushrooms, some of which Rich was pretty sure were good to eat (though for some reason, he didn't want to try one). Once we neared the top of the knoll, though, things got ugly. There was scrub oak as far as the eye could see, and hiding somewhere in the thicket was the station mark! We zeroed in on the station quite easily using the listed coordinates (no rock cairn remains in the area), and fought our way to it. But we had great difficulty locating the reference marks. The directions given were only approximate (as we later discovered), and walking was arduous due to the heavy brush. We stumbled around for well over an hour, examining every protrusion that could possibly have been described as an “outcrop”, until providentially we spotted RM2 poking through the leaves. Not long afterward, I finally found RM1 nearly flush against the ground and mostly covered by leaves. After paying our respects to this mark, we returned to the pull-off on the west side of Route 402 where we'd parked to locate LY1230, and searched for the azimuth mark. This mark was easy to locate and, like the other three marks in the set, was in excellent condition with the date and designation legible. Thanks, R, for providing the precise technical details!

Zhanna

[Photos:]
photoLY2680, Pike County, PA
photoLY2680 and surroundings, with no rock cairn in sight.

photoLY2680 RM1
photoView of RM1 and surroundings ...

photoLY2680 RM2
photoView of RM2 and surroundings ...

photoLY2680 AZ
photoView of azimuth mark and surroundings ...
N 41° 24.901 W 075° 08.062

To reach this first order horizontal control station required a cross-country hike of approximately 1/3 mile. We parked just off the edge of Lake Shore Drive at N41°24.625' W075°07.970' and began the approach by following a property boundary. The terrain is slightly uphill, moderately rocky, and for the most part open woods until the last several hundred feet where the brush thickens and impedes navigation. The historic description for this station indicates only the coarse directions to the reference marks, and due to the heavy growth finding them was a challenge. I estimate RM1 and RM2 to be 70 feet east and 44 feet southwest from the station mark, respectively. The 4-foot rock cairn was not found. An azimuth mark, located 3.42 miles to the west-northwest and just off the west side of Rt. 402 was very easy to find using the original description. (It is just south of the trail road and roughly 196 feet south-southwest from where station LY1230 is located.) At the station mark a Garmin GPSmap76 receiver indicated 0.0 feet from the adjusted NGS datasheet coordinates. All disks are in excellent condition, fully exposed, and the stamped designations are legible. ~Rich in NEPA~

[Photos:]
photoLY2680, "WHITE 1940," Pike County, PA.
photoGPSr and the station mark.
photoOrientation view of station mark and its surroundings.

photoReference mark "WHITE No. 1 1940."
photoGPSr and reference mark.
photoOrientation view of reference mark with surroundings.

photoReference mark "WHITE No. 2 1940."
photoGPSr and reference mark.
photoOrientation view of reference mark with surroundings.

photoAzimuth mark, "WHITE 1940."
photoGPSr and the azimuth mark.
photoOrientation view of azimuth mark with surroundings.
photoAzimuth mark is in wooded area directly behind this sign.

Documented History (by the NGS)

1/1/1940 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1940 (RJS) STATION IS LOCATED ON STATE FOREST LAND ON THE TOP OF A SMALL WOODED KNOLL ABOUT 5 MILES SOUTHEAST OF HAWLEY AND ABOUT 1/2 MILE NORTHWEST OF WHITE DEER LAKE. THE MARK IS SET IN A ROCK OUTCROP WHICH PROJECTS ABOUT 14 INCHES. ABOUT 16 FEET SOUTHEAST OF THE STATION THERE IS A 16-INCH PINE TREE ON WHICH 3 TRIANGLES ARE BLAZED 5 FEET ABOVE THE GROUND. A 4-FOOT ROCK CAIRN WAS ERECTED AT THE STATION. REFERENCE MARK NO. 1 IS SET IN ROCK OUTCROP EAST OF THE STATION. NOTE 12A. REFERENCE MARK NO. 2 IS SOUTHWEST OF THE STATION SET IN ROCK OUTCROP. NOTE 12A. AZIMUTH MARK IS SET IN ROCK OUTCROP PROJECTING 24 INCHES ABOVE THE GROUND AND IS LOCATED 53 FEET WEST OF THE CENTERLINE OF STATE HIGHWAY 402, 0.9 MILE SOUTH OF THE JUNCTION OF STATE HIGHWAY 402 AND U.S. HIGHWAY 6. IT IS ABOUT 60 FEET SOUTH OF A ROAD LEADING TO AN OLD STONE QUARRY. NOTE 12A. TO REACH FROM HAWLEY, GO 5.5 MILES SOUTH AND EAST ON U.S. HIGHWAY 6, THENCE SOUTH ON STATE HIGHWAY 402 FOR 0.95 MILE TO AN 18-INCH PINE TREE WITH TWO TRIANGULAR BLAZES ON RIGHT EDGE OF ROAD. FROM HERE PACK 1/2 MILE EASTWARD TO TOP OF KNOLL AND STATION. HEIGHT OF LIGHT ABOVE STATION MARK - 18 METERS.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in September 1999.
  • The orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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