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Details for Benchmark: CZ2186

N 32° 43.198 W 111° 43.339 (NAD 83)

Altitude: 1504.5

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
AF 55
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Recovered as described, in good condition.

[Photos:]
photoAF 55 / CZ2186
A close-up of the mark, with the GPSr.
photoAF 55 / CZ2186
A close-up of the mark alone.
photoAF 55 / CZ2186
A wide view of the general area, looking north.

Cross is visible in photo

Documented History (by the NGS)

1/1/1966 by DMA (MONUMENTED)
DESCRIBED BY DEFENSE MAP AGENCY 1966 T-8-S. R-6-E IN SECTION 15 NEAR THE SOUTHWEST CORNER. THE STATION MARK IS A CORPS OF ENGINEERS, U.S. ARMY DISK CENTERED IN THE TOP OF A ROUND CONCRETE POST 8 INCHES IN DIAMETER PROJECTING 0.1 FOOT ABOVE THE SURFACE OF THE GROUND. THE MARK IS STAMPED--AF 55 1966 ARMY MAP SERVICE. THE STATION MARK IS LOCATED 267 FEET NORTH OF THE CENTERLINE OF THE EAST-WEST ROAD. 57 FEET EAST OF THE PROLONGATION OF THE CENTERLINE OF THE ROAD SOUTH. 248 FEET NORTH OF THE EAST-WEST FENCE. 186 FEET NORTHEAST OF THE NORTH FENCE CORNER. 98 FEET NORTHWEST OF THE NORTHEAST-SOUTHWEST DIRT IRRIGATION DITCH. TO REACH FROM THE JUNCTION OF STATE ROUTES 84 AND 93 IN CASA GRANDE, ARIZONA GO SOUTHEAST ON 84 AND 93 FOR 6.4 MILES TO A ROAD SOUTH. TURN RIGHT AND GO SOUTH FOR 4.7 MILES TO ARIZONA CITY. FROM THE POST OFFICE IN ARIZONA CITY GO SOUTH FOR 2.5 MILES TO A CROSSROAD. TURN RIGHT AND GO WEST FOR 3.0 MILES TO A T ROAD SOUTH AND THE STATION SITE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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