Details for Benchmark: KV2637

N 40° 45.400 W 075° 44.900 (NAD 83)

Altitude: 692.04

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

Location:
In CARBON county, PA View Original Datasheet
Designation:
N 191
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Navigation

Didn't find it 07/26/2009 Ernmark couldn't find KV2637   Visit Log

The barn is gone & several houses w/ entry road are now in the area. Swept briefly w/ a metal detector, but the area appears to have some grading done. Zhanna & Rich's coordinates put me smack in the middle of the new asphalt drive..
Found it 10/12/2004 Team D&D79 found KV2637   Visit Log

Did Bok Joy cache and then did 3 benchmarks. The pic submit made it easy find. Thanks
Found it 08/23/2003 Zhanna found KV2637   Visit Log
N 40° 45.405 W 075° 44.905

Armed with the significant benchmark hunting experience I've gained over the past year, I thought it would be worthwhile to give this one another try while in the area for a day of geocaching with Rich. The description (along with plenty of careful searching and a little luck) was enough to allow us to locate the mark. Except for the witness post and the barn lot fence, all landmarks in the description are still in place. The “Y road” mentioned in the description refers to the intersection of Germans Road and Bake Oven Road, which lies just to the southwest of the mark. The concrete monument has been disturbed, but aside from a few scratches the disk itself is in good condition and the stamping is clearly legible.

Zhanna

[Photos:]
photoKV2637, Carbon County, PA
photoThe concrete post has been hit ...
photoThe station mark just off the road, and the barn to the north ...
photoFarm equipment that hasn't moved in quite some time ...
Found it 08/23/2003 Rich in NEPA found KV2637   Visit Log
N 40° 45.405 W 075° 44.907

This second order vertical control station is set in the top of a concrete monument flush with the ground roughly 4 feet from the northwest edge of the pavement of Germans Road and northeast of the intersection with Bake Oven Road. The historical description leads reliably to the station and except for the white witness post, the items referred to (walnut tree, barn, etc.) still exist. The mark was mostly concealed by dirt and grass. The surface of the monument and the surrounding area was cleared and the disk is now exposed. At the station a Garmin GPSmap76 receiver with remote active antenna indicated 38 feet from the scaled NGS datasheet coordinates. The setting has obviously been disturbed, perhaps struck by a snowplow or farm equipment, and the monument is now inclined to a significant degree from vertical. The disk itself is in good condition and the stamped designation is legible. ~Rich in NEPA~

[Photos:]
photoKV2637, “N 191 1942,” Carbon County, PA
photoGPSr and the station mark.
photoOrientation view, station is northeast of the road intersection.
photoOrientation view, south of east corner of barn, mark indicated.
photoOrientation view, northwest of edge of pavement, mark indicated.
Didn't find it 09/05/2002 Zhanna couldn't find KV2637   Visit Log

Came down the road to try for this one after being unable to locate KV2636. This marker appears to be on private property, though it's possible it may be close enough to the road that it can be seen and photographed easily. Again I was being watched; this is a difficult area in which to remain inconspicuous (do these people go to work?!). I'll have to try again once I'm better able to pinpoint the location.

Zhanna

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1 MI SW FROM GERMANS. 1.0 MILE SOUTHWEST ALONG THE COUNTY ROAD FROM THE STATION AT GERMANS, SET NEAR A Y ROAD, 14.5 FEET NORTHWEST OF THE CENTER-LINE OF THE ROAD, 27.2 FEET NORTHWEST OF A FORKED WALNUT TREE, 30 FEET SOUTH OF THE EAST CORNER OF THE BARN, 2 FEET EAST OF THE BARN LOT FENCE, 0.6 FOOT SOUTHEAST OF A WHITE MARKER POST. A STANDARD DISK SET IN TOP OF A CONCRETE POST.
01/01/1959 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 RECOVERED IN GOOD CONDITION.

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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