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Details for Benchmark: CG0309

N 31° 47.083 W 110° 53.133 (NAD 83)

Altitude: 3659.9

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
FOREST SERVICE
Marker Type:
survey disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Found in great shape at N 31 47.100 W 110 53.150.

[Photos:]
photoCG0309
photoCG0309 Distance

Found

[Photos:]
photoIMG_20120817_155756
photoIMG_20120817_155805

Found today with Tucson Coyotes.

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photo0309

Found it.

[Photos:]
photoCG0309

Found marker in good condition, marker is stamped with USDA Forest Service only.

[Photos:]
photoForest marker

Found as described.

[Photos:]
photoBM

Documented History (by the NGS)

Unknown by USFS (MONUMENTED)
01/01/1962 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1962 7.5 MI SE FROM CONTINENTAL. 6.9 MILES SOUTHEAST ALONG PAVED ROAD FROM CONTINENTAL, THENCE 0.55 MILE SOUTH ON PAVED ROAD. MARK IS SET IN THE NORTHEAST CORNER OF A CONCRETE BRIDGE GUARD RAIL.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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