Details for Benchmark: CZ2438
N 32° 17.688 W 110° 47.612 (NAD 83)
Coordinates may not be exact. Altitude is GPS OBS and location is ADJUSTED. (more info)
- In PIMA county, AZ View Original Datasheet
- NN 35
- Marker Type:
- alumnium marker (other than a disk)
- set into the top of a metal pipe driven into the ground
- May hold, but of type commonly subject to surface motion.
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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 LEFT (WEST) AND PROCEED ALONG TANQUE VERDE ROAD 2.9 KM (1.80 MI) TO THE INTERSECTION OF TANQUE VERDE ROAD AND BEAR CANYON ROAD. TURN RIGHT (NORTH) AND PROCEED ALONG BEAR CANYON ROAD 4.18 KM (2.60 MI) TO THE INTERSECTION OF BEAR CANYON ROAD AND SNYDER ROAD. TURN RIGHT (EAST) AND PROCEED ALONG SNYDER ROAD 0.64 KM (0.40 MI) TO THE INTERSECTION OF SNYDER ROAD AND PLACITA LIRIO. MONUMENT IS SOUTHEAST OF THE INTERSECTION. MARKER IS A STANDARD 8.3 CM (3-1/4IN) ALUMINUM CAP AFFIXED TO A 76 CM (30IN) ALUMINUM TUBE IMBEDDED IN A POURED CONCRETE MASS 10.52 M (34.51 FT) SOUTH OF THE SOUTH EDGE OF PAVEMENT OF SNYDER ROAD, AND 1.95 M (6.40 FT) WEST OF A POWER POLE. SUBSURFACE MARK IS A MAGNET EPOXIED TO THE FLANGED BASE OF THE ALUMINUM TUBE MONUMENT.
- 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.