Details for Benchmark: CG1049
N 31° 42.360 W 110° 45.609 (NAD 83)
Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)
- In SANTA CRUZ county, AZ View Original Datasheet
- Marker Type:
- NGS Benchmark
- setting not listed - see description
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Documented History (by the NGS)
|01/01/1936 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1936 (JB)
THE STATION IS LOCATED ABOUT 6-1/2 MILES NW OF SONOITA, 1 MILE SW OF THE OLD YOUNG RANCH AND 38 MILES SE OF TUCSON. IT IS ON THE HIGHEST POINT OF A RED ROCKY HILL WHICH IS ON THE W END OF A LONG RIDGE THAT EXTENDS W FROM HIGHWAY ARIZ. NO. 83. THIS HILL IS TIMBERED AND IS ON THE W SIDE OF A LOW SADDLE IN THE ABOVE RIDGE.
THE STATION MARK PROJECTS 4 INCHES AND IS 40 FEET N OF THE CENTERLINE OF AN E AND W TRACK ROAD WHICH CROSSES THE HILL.
R.M. NO. 1 PROJECTS 5 INCHES AND IS NE OF THE STATION.
R.M. NO. 2 PROJECTS 5 INCHES AND IS SE OF THE STATION.
THE AZIMUTH MARK PROJECTS 4 INCHES AND IS SE OF THE STATION. IT IS ON A SPUR RIDGE THAT EXTENDS IN A SOUTHEASTERLY DIRECTION FROM THE STATION.
A 4-FT. STAND WILL CLEAR ALL LINES FROM THIS STATION.
TO REACH THE STATION FROM THE INTERSECTION OF HIGHWAYS, U.S. NO. 80 AND U.S. NO. 89 AT THE S EDGE OF TUCSON GO E ON U.S. 80 21.2 MILES TO THE JUNCTION OF HIGHWAY, ARIZ. NO. 83. HERE TURN RIGHT AND GO S ON ARIZONA NO. 83 20.0 MILES TO THE GREATERVILLE ROAD ON THE RIGHT. CONTINUE STRAIGHT AHEAD ON NO. 83 7.1 MILES TO THE CAVE CANYON ROAD ON THE RIGHT. (THIS POINT IS ABOUT 2 MILES N OF SONOITA.) TURN RIGHT AND GO W ON GRADED ROAD 0.4 MILES TO A FORK. TAKE THE LEFT FORK, MAIN ROAD, AND GO W UP GRADE 2.8 MILES TO A FORK. TAKE THE RIGHT FORK, STRAIGHT AHEAD, AND GO W 1.2 MILES TO A FORK. TAKE THE RIGHT FORK, STRAIGHT AHEAD, W ALONG RIDGE ON MAIN ROAD 2.4 MILES TO THE HIGHEST POINT OF HILL AND STATION. THE STATION HILL IS ABOUT 1/2 MILE W OF A LOW SADDLE IN THE RIDGE. THE LAST 3/4 MILES THROUGH THE SADDLE AND UP THE STATION HILL IS ROUGH ROAD BUT IS PASSABLE.
- The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
- The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
- The Laplace correction was computed from DEFLEC99 derived deflections.
- The geoid height was determined by GEOID99.