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Details for Benchmark: CZ1027

N 32° 49.265 W 111° 40.283 (NAD 83)

Altitude: 1470.01

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
AJ 48
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Very first benchmark!!

[Photos:]
photo

Found it in good condition as described.

[Photos:]
photoAJ 48 (CZ1027)
Benchmark in Casa Grande, Arizona
photoAJ 48 (CZ1027) area view

Found in good shape, as described.

[Photos:]
photo
photo
photo

Found this today in good shape while geocaching in the area.

[Photos:]
photoCZ1027_AJ 48
photoCZ1027_AJ 48_Area

Found in good shape.

[Photos:]
photoCZ1027 w my finger
photoCZ1027 w GPSr

Found it in good shape.

[Photos:]
photoCZ1027

Found in good condition.....

Easy find on my way to Sunland Gin TB Tourist Court
& Truck Stop.

Recovered in good condition

[Photos:]
photoAJ 48 CZ1027

found in good condition.

[Photos:]
photoCZ1027 AJ 48.JPG
photoCZ1027 AJ 48 looking east.JPG
photoCZ1027 AJ 48 looking north.JPG
photoCZ1027 AJ 48 w gpsr.JPG

Recovered as described.

[Photos:]
photoAJ 48 / AJ 48
This camera no good for close-up!
photoAJ 48 / CZ1027
This camera no good for close-up!

Fount this one this evening , benchmark is in great shape.

We drive by this one all the time. Finally had the camera with us and we decided to stop. The listed coordinates are spot on.

[Photos:]
photoCZ1027 BM disk
photoBM Area

Documented History (by the NGS)

1/1/1967 by DMA (MONUMENTED)
DESCRIBED BY DEFENSE MAP AGENCY 1967 T-7-S. R-6-E. IN SECTION 13 NEAR 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 0.3 FOOT ABOVE THE SURFACE OF THE GROUND. THE MARK IS STAMPED--AJ 48 1967 ARMY MAP SERVICE. THE STATION MARK IS LOCATED 64 FEET SOUTH OF EAST-WEST POWERLINE. 83 FEET SOUTH OF THE CENTERLINE OF EAST-WEST ROAD. 102 FEET WEST OF THE CENTERLINE OF NORTH-SOUTH PAVED ROAD. 131 FEET WEST OF THE NORTH-SOUTH POWERLINE. 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 (TOWARD ARIZONA CITY) FOR 0.20 MILE TO A T ROAD WEST AND THE STATION SITE.
1/1/1967 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 6.2 MI SE FROM CASA GRANDE. ABOUT 6.1 MILES SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, THENCE 0.1 MILE SOUTH ALONG THE ARIZONA CITY ROAD, IN S 13, T 7 S, R 6 E, 102 FEET WEST OF THE CENTER LINE OF THE ROAD, 81 FEET SOUTH OF THE CENTER LINE OF A TRAIL ROAD LEADING WEST, ABOUT LEVEL WITH THE ROADS, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 2 INCHES.
1/1/1969 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1969 RECOVERED IN GOOD CONDITION.
1/1/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS ABOVE LEVEL WITH THE ROADS. 9.8 KILOMETERS (6.1 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, THENCE 0.3 KILOMETER (0.2 MILE) SOUTH ALONG ARIZONA CITY ROAD, SET IN THE CENTER OF 4 HORIZONTAL CONCRETE SLABS WHICH FORM A CROSS FOR TOPOGRAPHIC CONTROL, 31.1 METERS (102 FEET) WEST OF THE CENTERLINE OF ARIZONA CITY ROAD AND 24.7 METERS (81 FEET) SOUTH OF THE CENTERLINE OF AN EAST-WEST GRAVEL ROAD.
1/1/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS ABOVE LEVEL WITH THE ROADS. 9.8 KILOMETERS (6.1 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, THENCE 0.3 KILOMETER (0.2 MILE) SOUTH ALONG ARIZONA CITY ROAD, SET IN THE CENTER OF 4 HORIZONTAL CONCRETE SLABS WHICH FORM A CROSS FOR TOPOGRAPHIC CONTROL, 31.1 METERS (102 FEET) WEST OF THE CENTERLINE OF ARIZONA CITY ROAD AND 24.7 METERS (81 FEET) SOUTH OF THE CENTERLINE OF AN EAST-WEST GRAVEL ROAD.
1/1/1984 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984 RECOVERED IN GOOD CONDITION.
12/5/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 10.3 KM (6.40 MI) SOUTHEASTERLY ALONG STATE HIGHWAY 84 FROM THE JUNCTION OF STATE HIGHWAYS 93 (PINAL AVENUE) AND 287 (FLORENCE BOULEVARD) IN CASA GRANDE, THENCE 0.3 KM (0.20 MI) SOUTHERLY ALONG SUNLAND GIN ROAD, NEAR THE CENTER OF 4 CONCRETE SLABS THAT FORM A CROSS FOR TOPOGRAPHIC CONTROL, 31.1 M (102.0 FT) WEST OF AND LEVEL WITH THE ROAD CENTERLINE, 27.0 M (88.6 FT) SOUTH OF THE CENTER OF A TRACK ROAD, 23.0 M (75.5 FT) SOUTHWEST OF A UTILITY POLE, AND THE MONUMENT PROJECTS 0.05 M (0.16 FT) ABOVE THE GROUND SURFACE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in November 1993.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • 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.

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