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Details for Benchmark: CZ2440

N 32° 15.694 W 110° 42.227 (NAD 83)

Altitude: 2856

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
NN 39
Marker Type:
triangulation station disk
Setting:
in a boulder
Stability:
May hold, but of type commonly subject to surface motion.

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Found the benchmark with little trouble, in good condition.

[Photos:]
photoNN-39 marker

Recovered in good condition as described.

[Photos:]
photoCZ2440 - Benchmark - Pima County, AZ
photoCZ2440 - South looking North

Surprisingly still in good shape, though the boulder looks a little worse for wear.

[Photos:]
photoCZ2440
photoCZ2440 Wider View

Found this with no problem, but just be sure to watch your step. It's about a 7 foot fall.

[Photos:]
photoIn the rock
photoWatch your step!
Don't move too far to the west!

Went right to this one. No problem finding it at all.

MO & GO
Tucson, Arizona

Documented History (by the NGS)

01/01/1990 by AZ-019 (MONUMENTED)
DESCRIBED BY PIMA COUNTY ARIZONA 1990 TO REACH STATION FROM THE INTERSECTION OF INTERSTATE 10 AND HOUGHTON ROAD, EXIT NUMBER 275, TRAVEL NORTH ALONG HOUGHTON ROAD 21.08 KM (13.10 MI) TO THE INTERSECTION OF HOUGHTON ROAD AND TANQUE VERDE ROAD . TURN RIGHT (EAST) AND PROCEED ALONG TANQUE VERDE ROAD 3.22 KM (2.00 MI) WHERE TANQUE VERDE ROAD BECOMES REDINGTON ROAD. PROCEED EASTERLY ALONG REDINGTON ROAD 3.22 KM (2.00 MI) TO THE INTERSECTION OF REDINGTON ROAD AND EL CAMINO RINCONADO. TURN LEFT (NORTH) AND PROCEED ALONG EL CAMINO RINCONADO 1.29 KM (0.80 MI) TO THE FIRST HILL NORTH OF REDINGTON ROAD. MARKER IS TO THE EAST. MARKER IS A STANDARD 8.3 CM (3-1/4IN) ALUMINUM CAP EPOXIED IN A DRILL HOLE INTO EXPOSED ROCK LOCATED 4.42 M (14.50 FT) EAST OF THE EAST EDGE OF PAVEMENT UP A SLOPE APPROX 2.14 M (7.02 FT) HIGHER THAN THE PAVEMENT, 0.52 M (1.71 FT) WEST OF A FOUR STRAND BARBED WIRE FENCE, AND 10.21 M (33.50 FT) SOUTH OF A POWER POLE.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in August 1993.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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