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Details for Benchmark: CF0274

N 31° 38.121 W 108° 23.925 (NAD 83)

Altitude: 8366

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

Location:
In HIDALGO county, NM View Original Datasheet
Designation:
BIG HATCHET
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

Reference Points

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Documented History (by the NGS)

01/01/1917 by USGS (MONUMENTED)
01/01/1977 by USGS (GOOD)
DESCRIBED BY US GEOLOGICAL SURVEY 1977 STATION WAS REACHED BY HELICOPTER. A ROCK CAIRN WAS ERRECTED OVER THE MARK. A STANDARD BRONZE DISK STAMPED ---BIG HATCHET 1938--- SET IN A SLIGHT DEPRESSION IN BEDROCK. REFERENCE MARKS - NONE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in December 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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