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Details for Benchmark: DV0934

N 33° 52.433 W 112° 39.317 (NAD 83)

Altitude: 1876.8

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
J 24
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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Recovered as described, in good condition.

[Photos:]
photoJ 24 / DV0934
A wide view of the general area, looking north.
photoJ 24 / DV0934
A close-up of the mark alone.
photoJ 24 / DV0934
A close-up of the mark, with the GPSr.

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
01/01/1939 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1939 2.4 MI NW FROM HOT SPRINGS JUNCTION. 2.4 MILES NORTHWEST ALONG THE ATCHISON, TOPEKA AND SANTA FE RAILWAY FROM HOT SPRINGS JUNCTION, MARICOPA COUNTY, 175 FEET NORTHWEST OF MILEPOST 148, 450 FEET SOUTHEAST OF BRIDGE G 148, IN A ROCK POINT JUTTING OUT FROM THE WEST SLOPE OF A RAVINE, AND 20 FEET NORTHEAST OF THE CENTERLINE OF THE TRACK. A STANDARD DISK, STAMPED J 24 1933.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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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