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Details for Benchmark: CZ0407

N 32° 33.767 W 111° 29.133 (NAD 83)

Altitude: 1736.1

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

Location:
In PINAL county, AZ View Original Datasheet
Designation:
V 91
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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Found in good shape.

[Photos:]
photoCZ0407 w GPS

Recovered in good condition.

[Photos:]
photoCZ0407 V 91 closeup
photoCZ0407 V 91 wide view looking east
photoWith the GPSr

Found in good shape as described.

[Photos:]
photoCZ0407

Recovered as described, in good condition. GPS (HH2) co-ordinates N 32Deg 33.778' W 111Deg 29.141'.

[Photos:]
photoV 91 / CZ0407
A close-up of the mark, with the GPSr.
photoV 91 / CZ0407
A close-up of the mark alone.
photoV 91 / CZ0407
A wide view of the general area, looking west.

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
01/01/1951 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 11.1 MI W FROM RED ROCK. 0.2 MILE SOUTHEAST ALONG STATE HIGHWAY 84 FROM THE SOUTHERN PACIFIC RAILROAD STATION AT RED ROCK, THENCE 6.4 MILES SOUTHWEST ALONG A GRADED ROAD, THENCE 4.5 MILES NOTHEWEST ALONG A GRADED ROAD, ABOUT 100 YARDS SOUTHEAST ALONG A ROAD FROM A RESERVOIR, AND ABOUT 100 YARDS NORTH OF THE NORTH BASE OF A MOUNTAIN, 12 1/2 FEET SOUTH OF THE CENTER LINE OF THE ROAD, 2.4 FEET NORTH OF A WITNESS POST, AND ABOUT 1 FOOT HIGHER THAN THE ROAD, AND SET IN A CONCRETE POST PROJECTING 0.6 FOOT.
01/01/1977 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1977 0.2 MI SE. ALONG OLD STATE HWY. 84 (FRONTAGE RD) FROM FORMER SPRR STATION AT RED ROCK, THENCE 6.5 MI SW. ALONG SASCO RD., THENCE 3.0 MI NW., THENCE 0.1 MI W., THENCE 300 FT SW., THENCE 1.0 MI NW. ABOUT 100 YD SE. ALONG RD. FROM RESERVOIR, AT NORTH BASE OF MOUNTAIN. 12.5 FT S. OF CENTERLINE OF RD., 2.4 FT N. OF WITNESS POST, ABOUT 1 FT HIGHER THAN RD. IN TOP OF CONCRETE POST PROJECTING 0.6 FT. NGS DISK STAMPED V91 1935 RM NOT SEARCHED FOR.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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 geoid height was determined by GEOID99.

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