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Details for Benchmark: GU3891

N 36° 39.039 W 121° 49.207 (NAD 83)

Altitude: 166

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

Location:
In MONTEREY county, CA View Original Datasheet
Designation:
RANGE 7
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

Must Read!

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Took the railroad spur from another benchmark, but could also have taken the road. Only got a couple of the pictures I intended to take because my phone discharged.

[Photos:]
photoMark
photoSetting
N 36° 39.040 W 121° 49.208

Found in good condition. Unable to locate reference marks easily, though there appear to be rebar marks nearby at about the right bearings.

[Photos:]
photoGU3891 RANGE 7

This find capped a lovely hike at Fort Ord dunes on the warmest day of fall. As I was tired and the daylight was fading, I did not want a long hunt through the iceplant. I was so relieved when I spotted it right away. Of course the witness post helped. Coords given are within 40 feet, close enough.

[Photos:]
photodisc
Range 7
photowitness post

Found this one while looking for a nearby cache. The officer's club, however is long gone.

We found this one while looking for a nearby cache.HR62

Coords led me right there. Great view on a fine day.

Found easily. Area is fenced, but no longer posted as off limits. Access through several unlocked or broken gates.

[Photos:]
photoCloseup
photoLocation
Location shot showing old Army officer's club to the north.

Documented History (by the NGS)

01/01/1972 by CADH (MONUMENTED)
DESCRIBED BY CA DIV OF HIGHWAYS 1972 (LDK) THIS STATION IS LOCATED APPROXIMATELY 5-1/2 MILES NORTH OF MONTEREY WITHIN THE FORT ORD MILITARY RESERVATION AND BETWEEN THE OCEAN AND RTE. 001. IT IS APPROXIMATELY 500 FT. NORTHERLY OF FIRING RANGE 7 ON A SMALL HILL. TO REACH FROM THE INTERSECTION OF RTE. 001, POST MILE 83.89 AND THE SECOND STREET GATE AT FORT ORD, PASS THRU THE GATE ON SECOND STREET ONE BLOCK EASTERLY TO FIRST AVENUE. TURN RT. ON FIRST AVENUE AND GO ONE BLOCK SOUTHERLY TO FIRST STREET. BEAR RIGHT AND TAKE THE UNDERPASS BENEATH RTE. 1 TO BEACH RANGE ROAD (ABOUT 600 FT). TURN LT. ON BEACH RANGE ROAD FOR 0.2 MILE TO THE TOP OF A SMALL HILL AND THE STATION WHICH IS LOCATED 30 FEET WESTERLY OF THE CENTERLINE OF THE ROAD. STATION MARKS ARE STANDARD CDH BRASS DISCS STAMPED RANGE 7 1972. THE SURFACE MARK IS SET IN THE TOP OF A 14-INCH CONCRETE CYLINDER THAT PROJECTS 6 INCHES AND IS MARKED WITH A 5-FOOT METAL FENCE POST. THE UNDERGROUND MARK IS SET IN CONCRETE 36 INCHES BELOW GROUND. REFERENCE MARK NO. 1, A STANDARD DISC STAMPED RANGE 7 NO. 1 1972 IS SET IN THE TOP OF A 12-INCH CONCRETE CYLINDER THAT PROJECTS 4 INCHES ABOVE THE SURFACE AND IS ABOUT 0.5 FEET BELOW THE STATION. REFERENCE MARK NO. 2, A STANDARD DISC STAMPED RANGE 7 NO. 2 1972 IS SET IN THE TOP OF A 12-INCH CONCRETE CYLINDER THAT PROJECTS 4 INCHES ABOVE THE SURFACE AND IS ABOUT 0.5 FT ABOVE THE STATION. PERMISSION TO ENTER FORT ORD TO SURVEY MAY BE OBTAINED FROM MR. JOE PINTAR, DIRECTORATE OF FACILITIES ENGINEERING, FORT ORD, CALIFORNIA 93941. PHONE NO. 242-2806 OR 242-4421 HEIGHT OF LIGHT ABOVE STATION MARK 1.466 METERS.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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