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Details for Benchmark: ET1053

N 34° 00.019 W 113° 20.025 (NAD 83)

Altitude: 2264

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

Location:
In YAVAPAI county, AZ View Original Datasheet
Designation:
BOUNDARY BARLOW MON 1
Marker Type:
metal rod
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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BOUNDARY BARLOW MON 1
This is a 4 sided frustum- marked YUMA COUNTY 1918

[Photos:]
photoBOUNDARY BARLOW MON 1
photoBOUNDARY BARLOW MON 1 (A 4-sided frustum)
photoBOUNDARY BARLOW MON 1

Recovered as described, in good condition.

[Photos:]
photoBOUNDARY BARLOW MON 1 / ET1053
An interesting feature on the northeast side of the monument.
photoBOUNDARY BARLOW MON 1 / ET1053
A close-up of the southeast side of the monument.
photoBOUNDARY BARLOW MON 1 / ET1053
A wide view of the general area, looking southeast.
photoBOUNDARY BARLOW MON 1 / ET1053
A close-up of the mark, with the GPSr.

Documented History (by the NGS)

01/01/1944 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1944 (EHB) STATION IS ABOUT 11 MILES W AND 4 MILES N OF AGUILA, IN LOW SANDY DESERT COUNTRY, ABOUT 7 FEET W OF TRIANGULATION STATION INITIAL MONUMENT, AND ABOUT 148 FEET N OF THE YAVAPAI-MARICOPA COUNTY LINE. STATION IS IN A CONCRETE COUNTY-LINE MONUMENT AND IS MARKED BY A 4-INCH STEEL PIPE PROJECTING ABOUT 6 FEET ABOVE THE MONUMENT. THE CONCRETE BLOCK BEARS A BRONZE PLATE MARKED YUMA COUNTY 1918. STATION IS REFERENCE MARK 1 FOR INITIAL MONUMENT.

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 scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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