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Details for Benchmark: KV1608

N 40° 46.300 W 075° 04.283 (NAD 83)

Altitude: 1229.65

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

Location:
In WARREN county, NJ View Original Datasheet
Designation:
MONTANA AZ MK
Marker Type:
azimuth 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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Someone has vandalized this station and removed the bronze disk. Nothing remains but the concrete mounting and the stem hole. Since the disk was for vertical control (elevation), the missing disk renders the station unusable.

[This entry was edited by holograph on Saturday, November 24, 2007 at 5:07:44 AM.]

[Photos:]
photoKV1608 Warren Co. NJ (destroyed)
View of the missing disk and concrete with stem hole.
photoKV1608 facing E
Compare this with Harry's photo to verify that the mark that Harry found is now destroyed.

Found it.® Off in the boonies geocaching and benchmarking with Harry. Easy find.

N 40° 46.307 W 075° 04.283

This was a very easy find. If the 'Steep Grade' sign doesn't give it away, the witness post attached thereto does. Coordinates are from hand-held GPS. 'One-story radio shack' not found.

[Photos:]
photoKV1608 - Close up
photoKV1608 - Area shot
Looking northeast along Harmony Brass Castle Road

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1.4 MI W FROM WASHINGTON. 1.4 MILES WEST ALONG STATE HIGHWAY 24 FROM THE UNDERPASS AT WASHINGTON, WARREN COUNTY, THENCE ABOUT 4.9 MILES NORTHWEST ALONG A MACADAM ROAD, ABOUT 0.4 MILE NORTHWEST OF THE JUNCTION OF A ROAD LEADING WEST TO MONTANA, ABOUT 0.1 MILE SOUTHEAST OF THE JUNCTION OF A DIRT ROAD LEADING TO ROXBURG, AT THE SUMMIT OF A LONG HILL FROM THE NORTHWEST, AT THE EDGE OF A FIELD, 15 FEET NORTHEAST OF THE CENTER LINE OF THE ROAD, AND ABOUT 3 FEET HIGHER THAN THE ROAD. A STANDARD AZIMUTH-MARK DISK, STAMPED MONTANA 1942 AND SET IN THE TOP OF A CONCRETE POST.
01/19/1995 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1995 (ECB) THE STATION IS LOCATED IN HARMONY TOWNSHIP. TO REACH THE STATION FROM THE INTERSECTION OF STATE ROUTES 31 AND 57 IN THE BOROUGH OF WASHINGTON, GO WEST ON ROUTE 57 FOR 1.3 MI (2.1 KM) TO THE INTERSECTION OF COUNTY ROAD 623, BRASS CASTLE ROAD ON THE RIGHT. TURN RIGHT AND GO 1.4 MI (2.3 KM) TO THE TEE INTERSECTION OF COUNTY ROAD 647 ON THE LEFT. TURN LEFT AND GO 3.5 MI (5.6 KM) TO THE STATION ON THE RIGHT. THE STATION IS 6.0 M (19.7 FT) NORTHEAST FROM THE CENTERLINE OF ROUTE 647, 3.4 M (11.2 FT) NORTHWEST FROM A STEEP GRADE SIGN, 9.2 M (30.2 FT) WEST FROM A POLE WITH NO NUMBER, 15.6 M (51.2 FT) NORTH AND ACROSS THE ROAD FROM POLE HY1224, 17.5 M (57.4 FT) WEST SOUTHWEST FROM THE SOUTHWEST CORNER OF A ONE STORY WOOD RADIO SHACK.
09/10/1995 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1995 MARK NOT FOUND.

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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