Details for Benchmark: DV1911
N 33° 26.389 W 113° 02.409 (NAD 83)
Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)
- In MARICOPA county, AZ View Original Datasheet
- SADDLE MOUNTAIN
- Marker Type:
- triangulation station disk
- in rock outcrop
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Documented History (by the NGS)
|01/01/1948 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (DHK)
THE STATION IS LOCATED ABOUT 6.5 MILES AIRLINE SOUTHWEST OF TONOPAH ON THE MOST NORTHERN AND HIGHEST POINT OF SADDLE MOUNTAIN. THE STATION MARK IS SET 15 FEET EAST OF THE EDGE OF A 250 FOOT VERTICAL CLIFF AND 10.5 FEET SOUTHEAST OF A 6 FOOT CAIRN. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN 1947.
REFERENCE MARK NO. 1 IS SET 12 FEET EAST OF THE EDGE OF CLIFF AND 30 INCHES LOWER THAN THE STATION MARK. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN NO 1 1947.
REFERENCE MARK NO. 2 IS SET 20 FEET EAST OF THE EDGE OF CLIFF AND 1 FOOT LOWER THAN THE STATION MARK. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN NO 2 1947.
THE AZIMUTH MARK IS SET IN THE NORTH HEADWALL OF A CATTLE GUARD, 1 FOOT HIGHER THAN THE ROADWAY. IT IS STAMPED, SADDLE MTN 1947.
TO REACH THE STATION FROM TONOPAH. GO SOUTH 2.5 MILES TO A T INTERSECTION. TURN RIGHT, GO 5.0 MILES TO A CATTLE GUARD AND AZIMUTH MARK. CROSS CATTLE GUARD, TURN LEFT, FOLLOW ROAD SOUTHERLY ABOUT 1 MILE TO END OF ROAD. CONTINUE CROSS COUNTRY SOUTHWESTERLY ABOUT 0.8 MILE TO END OF TRUCK TRAVEL. FROM HERE WALK UP STEEP WASH WESTERLY TO BASE OF CLIFF. FOLLOW BASE OF CLIFF SOUTHERLY TO SADDLE, THEN FOLLOW RIDGE WEST AND NORTH TO HIGHEST POINT AND STATION. A 2 HOUR PACK.
- 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- The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)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.