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Details for Benchmark: LY1158

N 41° 19.233 W 075° 09.133 (NAD 83)

Altitude: 1851.18

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

Location:
In PIKE county, PA View Original Datasheet
Designation:
U 235
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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I was excited about this mark because it would provide the link between part of the 237 line stretching through Promised Land State Park to the boundary of Blooming Grove Hunting and Fishing Club property, and the 235 line (running along Route 402 and Lake Laura Rd.) We first searched for this mark on December 29, 2003, when we had to contend with a light dusting of snow on the ground. We could not find any evidence of the mark or the rock in which it was supposedly set, but we assumed our failure was due to the snow and we resolved to return in the Spring.

April 17 was the day of our return, and this time we rode in on our bikes, which gave us the advantage of being able to measure 1.8 miles along Lake Laura Road from its intersection with the highway. We did so and ended up at the very intersection we'd searched in December. Even without snow on the ground, the task was a difficult one and though we probed the ground and scraped off rocks for well over an hour, we could not find the mark. It is evident that the road has been graded and possibly widened since the mark was placed. The mark may have been destroyed at that time, or may still exist but simply be covered by excavated material.

[I]A report on the condition of this mark was submitted to NGS, along with the following recovery note:[/I]

Mark not found. The station was searched for on two separate occasions. Following Lake Laura Road southwesterly for 1.8 miles from PA Route 402 leads to an intersection with a trail west. Coordinates for the trail intersection are 41 19 14.6(N) 075 09 9.2(W). Property is owned by the Blooming Grove Hunting and Fishing Club. Contact Information - Scott F. Savini, General Manager, HC 8 BOX 8066, Hawley, PA 18428, 570-775-7371.

Zhanna

N 41° 19.243 W 075° 09.154

[B]Mark not found.[/B]

Extensive searches for this station were performed on two separate occasions. The suspected site was approached from Rt. 402 by traveling west along Lake Laura Road (a gravel track road that is private and gated) for roughly 1.8 miles to where a trail branches off westerly. The coordinates listed for this log are for the center of the intersection. At this point Lake Laura Road runs north-northeast/south-southwest and its surface appears to have undergone varying degrees of maintenance and improvement over the years, with sections having been filled, graded and possibly widened. The historic description provides very little to go on. It's likely that the mark still exists and was covered over by rocky fill. The property is owned by the Blooming Grove Hunting & Fishing Club.

~Rich in NEPA~

[Photos:]
photoView east on trail to gravel road intersection.
photoView north on Lake Laura Road, trail intersection.
photoView south on Lake Laura Road, trail intersection.

Documented History (by the NGS)

1/1/1959 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1959 13.8 MI SE FROM HAWLEY. 8.5 MILE SOUTH EAST OF HAWLEY TO THE GOOD SHEPHERD CHURCH THENCE ABOUT 3.55 MILE SOUTH ALONG STATE 402 TO A GRAVEL ROAD WEST THENCE 1.8 MILE SOUTH WEST ALONG PRIVATE GRAVEL ROAD TO A TRAIL NORTH WEST AND BM, SET IN TOP CENTER OF A ROCK THAT IS FLUSH WITH THE GROUND AND ON THE EDGE OF THE USABLE PART OF THE ROAD AT THE SOUTH EDGE OF 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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