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Details for Benchmark: CG1114

N 31° 26.637 W 111° 13.664 (NAD 83)

Altitude: 5374

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

Location:
In SANTA CRUZ county, AZ View Original Datasheet
Designation:
MONTANA
Marker Type:
survey disk
Setting:
in rock outcrop
Stability:

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Recovered station MONTANA, along with RM 1, RM 2 and azimuth mark, all in good condition excepting that the surface of RM 1 has been marred by vandals and most of the stamping is no longer legible. Handheld GPSr (HH2) indicated coordinates for the azimuth mark of N 31 28 02.3 W 111 13 20.2 (DMS).

[Photos:]
photoCG1114 MONTANA closeup
photoCG1114 MONTANA wide view looking west
photoCG1114 MONTANA RM 1
photoCG1114 MONTANA RM 1 view to station
photoCG1114 MONTANA RM 2
photoCG1114 MONTANA RM 2 view to station
photoCG1114 MONTANA azimuth mark
photoCG1114 MONTANA azimuth mark view to station
photoCG1114 MONTANA azimuth mark looking north

There is a benchmark only 6' from these coords but it is labelled "US ARMY" and "1955" and a few other bits of info. I didn't notice the word "MONTANA" stamped on it. Also it looks like it may be copper, not bronze, because of the color its rusting into.

I was hoping I would be able to claim another benchmark after my hike today, but I guess not.

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 (EBL) ON THE SUMMIT OF THE PROMINENT ROCKY PEAK LYING ABOUT 3 MILES SOUTHEAST OF THE GOLD MINING CAMP OF RUBY, KNOWN AS MONTANA MOUNTAIN, IN TOP OF FLAT ROCK OUTCROP ON THE CREST OF THE HIGHEST POINT OF THE ROCKY OUTCROP COMPRISING THE SUMMIT, AND ABOUT 60 YARDS SOUTHEAST OF THE NORTHWEST END OF THE SUMMIT. MARKED BY A STANDARD U.S. ARMY ENGINEER CORPS DISK, STAMPED U.S.C. AD G.S. 1935 SET IN A DRILL HOLE IN THE ROCK, REFERENCE MARK NO. 1, A STANDARD BRONZE REFERENCE DISK, STAMPED MONTANA 1935 NO. 1, IS IN THE TOP OF A LARGE BOULDER AT NORTH EDGE OF THE SUMMIT AND 8.320 METERS (27.30 FEET) FROM STATION IN AZIMUTH 185 DEG 33 MIN. REFERENCE MARK NO. 2, A STANDARD BRONZE REFERENCE DISK, IS IN TOP OF A SMALL BOULDER, ON CREST OF THE RIDGE AND 7.580 METERS (24.87 FEET) FROM STATION S 59 DEG 51 MIN E. THE AZIMUTH MARK, A STANDARD BRONZE DISK, STAMPED MONTANA 1935-1936, IS ON THE NOGALES-RUBY ROAD, 1.4 MILES SOUTHEAST ALONG THE ROAD FROM ITS JUNCTION WITH THE ARIVACA ROAD AT RUBY, 50 YARDS WEST OF A ROAD FORK, 10 YARDS NORTH OF THE CENTER OF THE ROAD WHERE IT CROSSES CREST OF FIRST DIVIDE SOUTHEAST OF RUBY, 20 FEET SOUTHEAST OF LARGE RED ROCK OUTCROP ABOUT 6 FEET HIGH, IN TOP OF REDDISH GRANITE BOULDER AND 2 MILES FROM STATION N 11 DEG 23 MIN E.

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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