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Details for Benchmark: CZ2037

N 32° 48.411 W 111° 37.178 (NAD 83)

Altitude: 1501.4

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
AM 49
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Found in good shape, as described.

[Photos:]
photoCZ2037
photoCZ2037 Wider View
photoCZ2037 Petal Remains

Recovered as described, in good condition.

[Photos:]
photoAM 49 / CZ2037
A close-up of the mark, with the GPSr.
photoAM 49 / CZ2037
A close-up of the mark alone.
photoAM 49 / CZ2037
A wide view of the general area, looking south.

Located the benchmark today while meeting up with friends.

Last description is spot on about the broken up concrete star.

[Photos:]
photoAM 49 CZ2037

Recovered Station Mark in good condition as described with the following update to the description – the Station Mark is located on the South edge of a recently dug canal. The broken remains of the concrete petals that formed a 25 foot cross around the Station Mark were found in a pile South of the Station Mark. Since the Reference Marks were part of the East and South petals, they have been destroyed.

To reach the Station from the intersection of I-10 and Toltec Road – take N. Toltec Road North for 2 miles to the Station on the left.

[Photos:]
photoCZ2037 - Benchmark – Pinal County, AZ
photoCZ2037 – East looking West

Cross is visible in the aerial photos.

Documented History (by the NGS)

1/1/1967 by DMA (MONUMENTED)
DESCRIBED BY DEFENSE MAP AGENCY 1967 T-7-S. R-7-E. IN SECTION 16 NEAR THE SOUTHEAST 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 0.4 FOOT ABOVE THE SURFACE OF THE GROUND. THE MARK IS STAMPED--AM 49 1967 ARMY MAP SERVICE. THE STATION MARK IS LOCATED 78 FEET NORTH OF EAST-WEST DITCH. 47 FEET NORTHEAST OF DITCH. 123 FEET WEST OF THE NORTH-SOUTH POWERLINE. 89 FEET WEST OF THE CENTERLINE OF NORTH-SOUTH ROAD. 95 FEET NORTH OF THE CENTERLINE OF EAST-WEST BLADED ROAD. TO REACH FROM THE JUNCTION OF STATE ROUTES 84 AND 93 IN CASA GRANDE, ARIZONA GO SOUTHEAST ON 84 AND 93 FOR 10.2 MILES TO CROSSROAD (TOLTEC HIGHWAY). TURN LEFT AND GO NORTH FOR 1.0 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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