Skip to Content

Details for Benchmark: KV6455

N 40° 20.883 W 074° 39.200 (NAD 83)

Altitude: 200.04

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

Location:
In MERCER county, NJ View Original Datasheet
Designation:
PRINCETON RM 2
Marker Type:
reference mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

found this while looking for benchmarks today...got them both

Found by accident! After looking for the nearby RM 1 marker, I took a break and walked to Nassau Street to grab lunch. On my way back to my car, I spotted this marker. Then I found the nearby RM 1, whose coords are definitely off by 40 to 70 feet! Not sure if the coords for this RM 2 are accurate or not.

[Photos:]
photoBenchmark KV6455 - Princeton Prospect RM 2

Quick find.

[Photos:]
photoKV6455

Found it.® Three in a row.

Found easily walking west, after finding KV6456 & KV6457.

[Photos:]
photoKV6455 Princeton Mercer NJ Close UP
photoKV6455 Princeton Mercer NJ View Northeast
N 40° 20.872 W 074° 39.272

My son Eric was taking a practice ACT test in Princeton, so I decided to add a few more benchmarks to the list.

[Photos:]
photoMonument
N 40° 20.874 W 074° 39.266

It is easy to find KV 6455, KV6457 and KV6456 when walking eastward from the junction of Washington Rd and Prospect Av.
The monument is quite large and the shape is not a perfect round. It caught our eyes first. The disk is covered by dirt.

[Photos:]
photothe disk

This one was right across Prospect st (along with 2 others) we were going to measure it out but one of the boys just saw the edge of it. You can tell in the pictures, we uncovered more than half which was covered over with the red landscaping gravel. The moisture shows who much was buried.

[Photos:]
photoDisk
photoMonument
Here you can see what was dry. thats was the part that was visiable.
phototowards the station
the ref. arrow points to KV5501
photoThe triangle
Here one can see RM #1 and #2 as well as KV6457 inbetween and the location of the 2 reference arrows.

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
05/30/1990 by NJGS (GOOD)
DESCRIBED BY NEW JERSEY GEODETIC SURVEY 1990 THE STATION IS LOCATED IN THE BOROUGH OF PRINCETON, ON THE CAMPUS OF PRINCETON UNIVERSITY, ON THE SOUTH SIDE OF PROSPECT AVENUE. TO REACH THE STATION FROM THE JUNCTION OF WASHINGTON ROAD AND PROSPECT AVENUE, PROCEED 45.0 M (147.6 FT) NORTHEAST FROM THE EAST CURBLINE OF WASHINGTON ROAD TO THE STATION ON THE RIGHT, 2.21 M (7.25 FT) SOUTH OF THE SOUTH CURB OF PROSPECT AVENUE, 2.25 M (7.38 FT) NORTH OF THE NORTH EDGE OF THE SIDEWALK, 33.33 M (109.35 FT) SOUTH SOUTHWEST AND ACROSS PROSPECT AVENUE FROM TRIANGULATION STATION PRINCETON, 7.9 M (25.9 FT) SOUTH OF THE CENTERLINE OF PROSPECT AVENUE AND 0.02 M (0.07 FT) ABOVE THE GROUND.
11/14/1991 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1991 RECOVERED IN GOOD CONDITION.
05/23/1995 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1995 (ECB) RECOVERED AS DESCRIBED.

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 April 1995. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • 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.

Advertising with Us

Return to the Top of the Page