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Details for Benchmark: ES0364

N 34° 20.950 W 111° 54.883 (NAD 83)

Altitude: 4707

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

Location:
In YAVAPAI county, AZ View Original Datasheet
Designation:
DUGAS AZ MK
Marker Type:
azimuth mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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N 34° 20.949 W 111° 54.899

Found this benchmark today in good condition.

[Photos:]
photoCloseup of the benchmark with GPS
photoEye-level view of the mark
photoWide view of the mark

Recovered as described.

Recovered in good condition. Handheld GPSr indicated coordinates of N 34 20.951' W 111 54.900'.

[Photos:]
photoES0364 DUGAS AZ MK closeup
photoES0364 DUGAS AZ MK wide shot from south

Documented History (by the NGS)

01/01/1946 by CGS (MONUMENTED)
01/01/1952 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 4.4 MI E FROM DUGAS. 4.4 MILES EAST ALONG A TRACK ROAD FROM THE DUGAS RANCH, IN TOP OF A 3-FOOT ROCK OUTCROP PROJECTING 0.8 FOOT ABOVE THE GROUND, ABOUT 14 FEET LOWER THAN THE TOP OF THE HILL ON THE NORTH SLOPE, 0.2 MILE EAST OF A ROAD JUNCTION LEADING SOUTH, 299 FEET SOUTH OF THE CENTER LINE OF THE ROAD (SLOPING DISTANCE), 280 FEET SOUTH OF A WITNESS POST SET 19 FEET SOUTH OF THE CENTER LINE OF THE ROAD, 3.0 FEET NORTH OF A WITNESS POST AT THE TOP OF A HILL, HIGHER THAN THE ROAD.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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