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Details for Benchmark: CZ2225

N 32° 40.538 W 111° 47.574 (NAD 83)

Altitude: 1505.6

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
AB 58
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

Must Read!

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Recovered as described, in good condition. An update to the to-reach follows. From the Sunland Gin Road exit on I-10 go south on Sunland Gin Road 9.11 miles to the intersection of Harmon Road. Then west on Harmon Road about 6.00 miles to a gate and a T-junction. Turn south and go .63 miles to a road right. Turn east and travel about 1 mile west to a T-junction. Turn north, and travel 0.90 miles north to the station site, and the mark on the left.

[Photos:]
photoAB 58 / CZ2225
A close-up of the mark, with the GPSr.
photoAB 58 / CZ2225
A close-up of the mark alone.
photoAB 58 / CZ2225
A wide view of the general area, looking north.

Documented History (by the NGS)

1/1/1966 by DMA (MONUMENTED)
DESCRIBED BY DEFENSE MAP AGENCY 1966 T-9-S. R-5-E. IN SECTION 1 ABOUT 0.35 MILE SOUTH OF THE NORTHEAST 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 0.2 FOOT ABOVE THE SURFACE OF THE GROUND. THE MARK IS STAMPED--AB 58 1966 ARMY MAP SERVICE. THE STATION MARK IS LOCATED 80 FEET WEST OF THE NORTH-SOUTH SECTION LINE. ABOUT 760 FEET NORTH OF THE 1/4 SECTION CORNER. TO REACH FROM THE NORTHEAST BOUNDARY OF THE PAPAGO INDIAN RESERVATION AND THE CHUICHU ROAD GO SOUTHWEST ON THE CHUICHU ROAD FOR 2.3 MILES TO A ROAD SOUTHEAST, TURN LEFT AND GO SOUTHEAST FOR 0.9 MILE TO A ROAD FORK. TAKE RIGHT FORK AND GO SOUTH (PASSING THRU THE TOWN OF SHOPISHK) FOR 1.6 MILE TO A ROAD FORK, TAKE THE LEFT FORK AND CONTINUE SOUTH AND SOUTHWEST FOR 1.5 MILE TO THE SOUTHEAST SIDE OF A BUTTE, TURN LEFT AND FOLLOW TRACKS SOUTH CROSS COUNTRY FOR 0.75 MILE TO A FENCE CORNER, CONTINUE SOUTH ALONG WEST SIDE OF FENCE FOR 0.35 MILE TO 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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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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