Details for Benchmark: FS0439
N 35° 47.950 W 114° 08.533 (NAD 83)
Coordinates may not be exact. Altitude is POSTED and location is SCALED. (more info)
- In MOHAVE county, AZ View Original Datasheet
- A 128
- Marker Type:
- bench mark disk
- set into the top of a round concrete monument
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|01/01/1935 by CGS (MONUMENTED)
|01/01/1950 by NGS (GOOD)
|DESCRIBED BY NATIONAL GEODETIC SURVEY 1950
28.3 MI S FROM PIERCES FERRY. 13.4 MILES SOUTH ALONG THE GRAVELED PARK SERVICE ROAD FROM THE RANGER STATION AT PIERCES FERRY, THENCE 13.7 MILES SOUTH ALONG A DIRT ROAD, THENCE 1.2 MILES NORTHWEST ALONG THE HUALPAI WASH ROAD, 0.5 MILE NORTHWEST OF A LARGE POND USED FOR WATERING CATTLE, 55 FEET SOUTHWEST OF THE CENTER LINE OF THE ROAD, 3.0 FEET SOUTH OF A WITNESS POST, ABOUT LEVEL WITH THE ROAD, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.8 FOOT ABOVE THE GROUND.
|01/26/1987 by USPSQD (GOOD)
|RECOVERY NOTE BY US POWER SQUADRON 1987 (SDC)
RECOVERED IN GOOD CONDITION.
- The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
- The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in 1992. * This is a POSTED BENCH MARK height. Code A indicates a distribution rate of 0.0 thru 1.0 mm/km.
- The geoid height was determined by GEOID99.
- The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
- The modeled gravity was interpolated from observed gravity values.