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Details for Benchmark: CG0301

N 31° 49.250 W 110° 55.333 (NAD 83)

Altitude: 3272.7

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
RESERVE AZ MK RESET
Marker Type:
azimuth 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 great shape at N 31 49.280 W 110 55.340.

[Photos:]
photoGC0301
photoGC0301 Distance

Found

[Photos:]
photoIMG_20120817_150113

Found today with Tucson Coyotes.
Found at: N 31 49.270 W110 55.349

[Photos:]
photo0301
photo0301 close up

Found it.

[Photos:]
photoCG0301

Skipped on the way in, found it on the way home. Good condition, but hidden in long grass.

[Photos:]
photoReserve Azimuth reset
photohiding

Found as described. The BM and witness post is about 170 ft north-west of the given coordinates.

[Photos:]
photoWitness Post
photoBM and GPSr

Located AZ Marker per description.

Marker in good condition.

[Photos:]
photoCG0301 Azimuth Marker

Documented History (by the NGS)

01/01/1959 by CGS (MONUMENTED)
01/01/1962 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1962 3.8 MI SE FROM CONTINENTAL. 3.8 MILES SOUTHEAST ALONG PAVED ROAD FROM CONTINENTAL, 37.0 FEET SOUTH OF THE CENTERLINE OF THE PAVED ROAD, AND 3.7 FEET NORTHEAST OF A METAL WITNESS POST. MARK IS SET IN THE TOP OF A SQUARE CONCRETE POST.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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