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Details for Benchmark: KU4063

N 40° 59.159 W 073° 54.390 (NAD 83)

Altitude: 521

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

Location:
In BERGEN county, NJ View Original Datasheet
Designation:
ROON
Marker Type:
triangulation station disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

Reference Points

Must Read!

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After hiking along the Long Path on a beautiful day, I made a short road walk to find this benchmark. After clearing vines away, I also uncovered RM 1. Could not find RM 2, or the original WM. Easily found the two concrete footings. Great vistas from this location!

I spent a sunny (but cold) Saturday hiking along the Palisades from Greenbrook Sanctuary to the NY-NJ state line. I worked my way through 6 triangualtion stations and found almost everything I was looking for. I spent almost half of my time at [url=http://www.geocaching.com/mark/details.aspx?PID=ku4051]KU4051 "HIGH POINT"[/url] and managed to find 4 of 5 reference marks plus a witness mark, but alas, not the ststion mark. Still all-in-all a very productive day.

Found just off the side of the road on the cliff edge. The station and RM 1 were easy to find. I measured teh distance and diredtdion to RM2 but didn't see anything. I got out the metal detector to scann the area and then realized that there was a drill hole and the impression of aa disk with cement right where I was standing. This is likely the remnant of RM 2. The Witness Mark which was a large stone at the side of the road, was not found. I assume the stone was lost when the current rock wall was built.

[Photos:]
photoKU4063 ROON RM 1, The Palisades, NJ
RM 1 is on a boulder to the south of the station. The poison Ivy was not a problem at this time.
photoKU4063 ROON RM 1, The Palisades, NJ
Closeup of RM 1.
photoKU4063 ROON RM 2, The Palisades, NJ
Only the drill hole and impression of Reference Mark #2 remain.
photoKU4063 ROON RM 2, The Palisades, NJ
photoKU4063 ROON WM 1 (1992), The Palisades, NJ
This concrete footing is the first witness mark described in the 1992 NJGS log. It is near RM #2. Not to be confused with the WM described in the 1930 CGS log.
photoKU4063 ROON WM 2 (1992), The Palisades, NJ
This concrete footing is the second witness mark described in the 1992 NJGS log. It is southwest of the station.
photoKU4063 ROON, The Palisades, NJ
The large cross painted on the rock makes this one had to miss.
photoKU4063 ROON, The Palisades, NJ
The large cross painted on the rock makes this one had to miss.
photoKU4063 ROON, The Palisades, NJ

Found it.® Benchmarking with Harry. Beautiful views!

Found by description and coordinates. Not for the acrophobic. (Wait a minute. I have terrible fears of heights!) It is, indeed, 6.6 feet from the edge of the 400-500 foot drop off the edge of the Palisades. The rock containing the witness mark seems to have been replaced by a rock wall. It was not found.

[Photos:]
photoKU4063 - View east across the river to Yonkers.
photoKU4063 - Close Up
photoKU4063 with GPS

Please see the complete recovery, including text and photos, at my website: [b][url=http://surveymarks.planetzhanna.com/surveymarks/ku4063/]KU4063 - ROON[/url][/b].

Zhanna

This entry was edited by Zhanna on Friday, 07 December 2012 at 02:21:00 UTC.

Documented History (by the NGS)

1/1/1930 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1930 (CAE) ON THE TOP OF THE PALISADES, 2.65 MILES NORTH ALONG SYLVAN BOULEVARD FROM THE POINT WHERE THE ROAD FROM THE YONKERS FERRY JOINS THE BOULEVARD. STATION IS ABOUT 17.9 METERS E OF THE CENTER LINE OF THE BOULEVARD. THE ROAD IS SOME DISTANCE BACK FROM CLIFF UNTIL THE VICINITY OF THE STATION IS REACHED WHERE A BEND BRINGS IT OUT NEAR THE EDGE. STATION AND REFERENCE MARKS ARE STANDARD BRONZE DISKS WEDGED IN A DRILL HOLE IN OUTCROPPING BEDROCK. WITNESS MARK IS A 1 1/2-INCH HOLE DRILLED IN THE TOP OF A LARGE GRANITE BOULDER 2 BY 4 BY 3 FEET, ONE OF SEVERAL SET ALONG E SIDE OF ROAD TO SERVE AS A GUARD RAIL. AT THE STATION THE ANGLE (CLOCKWISE) FROM THE WATER TANK IN HASTINGS, N.Y., BELONGING TO THE AMERICAN BRASS CO., TO A LARGE STANDPIPE (BLACK) IS S 00 DEG 19 MIN 3S 0 SEC W. HEIGHT OF SIGNAL ABOVE STATION MARK - 2.0 METERS.
1/1/1930 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1930 RECOVERED IN GOOD CONDITION.
2/7/1992 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1992 THE STATION IS LOCATED IN THE BOROUGH OF ALPINE ALONG THE DRIVEWAY LEADING TO THE STATE LINE LOOKOUT ON THE EAST SIDE OF THE PALISADES INTERSTATE PARKWAY IN THE PALISADES INTERSTATE PARK. TO REACH THE STATION FROM THE NEW YORK STATE LINE ON THE PALISADES INTERSTATE PARKWAY, GO SOUTH ON THE PALISADES INTERSTATE PARKWAY FOR 2.0 MI (3.2 KM) TO THE YOU TURN ON THE LEFT FOR THE STATE LINE LOOKOUT. GO NORTH ON THE PALISADES INTERSTATE PARKWAY FOR 0.25 MI (0.40 KM) TO THE EXIT FOR THE STATE LINE LOOKOUT ON THE RIGHT. TURN RIGHT AND FROM WHERE THE CONCRETE DRIVEWAY STARTS, GO 0.4 MI (0.6 KM) TO THE STATION ON THE RIGHT. THE STATION IS ALSO 0.15 MI (0.24 KM) SOUTH FROM THE BEGINNING OF THE OVERLOOK PARKING LOT. THE STATION IS 18.0 M (59.1 FT) EAST FROM THE CENTERLINE OF THE CONCRETE ROAD, 2.0 M (6.6 FT) NORTHWEST FROM THE EDGE OF THE CLIFF, 14.2 M (46.6 FT) SOUTH FROM AN 0.5 M (1.6 FT) SQUARE CONCRETE FOOTING AND 9.4 M (30.8 FT) NORTHEAST FROM AN 0.5 M (1.6 FT) SQUARE CONCRETE FOOTING. THE STATION IS SET FLUSH WITH THE GROUND AND SHOULD BE APPROACHED WITH CAUTION AS IT IS VERY NEAR THE EDGE OF THE CLIFF.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in May 1999.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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