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Details for Benchmark: CZ1035

N 32° 47.489 W 111° 37.116 (NAD 83)

Altitude: 1508.14

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
AM 50
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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Found in good shape.

[Photos:]
photoCZ1035
photoCZ1035 w GPSr

Found in good shape, as described.

[Photos:]
photoCZ1035
photoCZ1035 Wider View
photoCZ1035 w/Petals

Slojoe38 & wife

Found while caching. It is in good condition. Wish the same could be said of the area which is covered by trash.

Found while caching.

[Photos:]
photoCZ1035

found in good condition

[Photos:]
photoAM50

Located per description in good condition

[Photos:]
photoAM 50 CZ1035 marker

Recovered as described, in good condition.

[Photos:]
photoAM 50 / CZ1035
A close-up of the mark, with the GPSr.
photoAM 50 / CZ1035
A close-up of the mark alone.
photoAM 50 / CZ1035
A wide view of the general area.

Recovered Station Mark, Reference Mark E, and Reference Mark S in good condition as described.

To reach the Station from the intersection of I-10 and Toltec Road – take N. Toltec Road North for 1 mile to AZ Hwy 84. Turn right on AZ Hwy 84 and the Station is on the right.

[Photos:]
photoCZ1035 - Benchmark – Pinal County, AZ
photoCZ1035 - RME
photoCZ1035 - RMS
photoCZ1035 – East looking West

Found today in good condition.

[Photos:]
photo2006_0215watch0002.JPG

A Google Earth shot shows the cross fairly clearly.

[Photos:]
photoCZ1035 Google Earth image
This also shows the disparity between the coordinates and the actual position. Not sure what is "off" here, as the coordinates are "adjusted".

Recovered in good condition. our first Army Map disk.

[Photos:]
photoAM 50 in Pinal county, AZ.
photoCllose up of AM 50
photoThe concrete cross for AM 50

A cross is visible in the median of the interstate. Doubtful law officials would allow me to check it out.

Documented History (by the NGS)

01/01/1967 by DMA (MONUMENTED)
DESCRIBED BY DEFENSE MAP AGENCY 1967 T-7-S. R-7-E. IN SECTION 27 NEAR THE NORTHWEST 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 0.0 FOOT ABOVE THE SURFACE OF THE GROUND. THE MARK IS STAMPED--AM 50 1967 ARMY MAP SERVICE. THE STATION MARK IS LOCATED 97 FEET SOUTHWEST OF THE CENTERLINE OF NORTHWEST-SOUTHEAST HIGHWAY. 138 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE MAIN TRACKS. 91 FEET NORTHEAST OF A POWERLINE. 277 FEET EAST OF THE INTERSECTING CENTERLINES OF THE NORTH-SOUTH ROAD AND NORTHWEST-SOUTHEAST MAIN TRACK. 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 (TOLTEC) TO CROSSROAD AND THE STATION SITE.
01/01/1967 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 4.6 MI NW FROM ELOY. ABOUT 4.6 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT ELOY, IN S 27, T 7 S, R 7 E, 9 1/2 POLES SOUTHEAST OF THE STATION SIGN AT TOLTEC, 9 1/2 POLES NORTHWEST OF MILEPOST NUMBER 929, 122 FEET NORTHEAST OF THE NORTHEAST RAIL OF THE NORTHEAST SET OF TRACKS, 93 FEET SOUTHWEST OF THE CENTER LINE OF STATE HIGHWAY 84, 176 FEET NORTHEAST OF THE EAST CORNER OF RAILROAD BRIDGE NUMBER 928.65, 162 FEET SOUTHEAST OF THE SOUTHEAST END OF THE SOUTHWEST HEAD WALL OF A CONCRETE CULVERT UNDER THE HIGHWAY, ABOUT 3 FEET BELOW THE LEVEL OF THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 1 INCH.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS 1 M BELOW THE HIGHWAY. 15.8 KILOMETERS (9.8 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, 0.2 KILOMETER (0.1 MILE) SOUTHEAST OF THE INTERSECTION OF THE RAILROAD AND TOLTEC ROAD, SET IN A CONCRETE POST AT THE CENTER OF 4 CONCRETE SLABS WHICH MAKE A CROSS FOR TOPOGRAPHIC CONTROL, 37 METERS (122 FEET) NORTHEAST OF THE NORTHEAST RAIL OF THE NORTHEAST TRACKS, 49.1 METERS (162 FEET) SOUTH OF THE SOUTHEAST END OF THE SOUTHWEST HEADWALL OF A CONCRETE CULVERT UNDER THE HIGHWAY AND 28.2 METERS (93 FEET) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY.
01/01/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 THE MARK IS 1 M BELOW THE HIGHWAY. 15.8 KILOMETERS (9.8 MILES) SOUTHEAST ALONG THE SOUTHERN PACIFIC RAILROAD FROM THE STATION AT CASA GRANDE, 0.2 KILOMETER (0.1 MILE) SOUTHEAST OF THE INTERSECTION OF THE RAILROAD AND TOLTEC ROAD, SET IN A CONCRETE POST AT THE CENTER OF 4 CONCRETE SLABS WHICH MAKE A CROSS FOR TOPOGRAPHIC CONTROL, 37 METERS (122 FEET) NORTHEAST OF THE NORTHEAST RAIL OF THE NORTHEAST TRACKS, 49.1 METERS (162 FEET) SOUTH OF THE SOUTHEAST END OF THE SOUTHWEST HEADWALL OF A CONCRETE CULVERT UNDER THE HIGHWAY AND 28.2 METERS (93 FEET) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY.
01/01/1984 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984 RECOVERED IN GOOD CONDITION.
12/05/1991 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 0.3 KM (0.20 MI) SOUTHERLY ALONG MAIN STREET FROM THE POST OFFICE IN ELOY, THENCE 7.4 KM (4.60 MI) NORTHWESTERLY ALONG STATE HIGHWAY 84, NEAR THE CENTER OF 4 CONCRETE SLABS THAT FORM A CROSS FOR TOPOGRAPHIC CONTROL, 37.0 M (121.4 FT) NORTHEAST OF THE NEAR RAIL OF THE SOUTHERN PACIFIC RAILROAD, 28.2 M (92.5 FT) SOUTHWEST OF THE HIGHWAY CENTERLINE, 0.6 M (2.0 FT) BELOW THE LEVEL OF THE HIGHWAY, AND THE MONUMENT PROJECTS 0.02 M (0.07 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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