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Details for Benchmark: RM0583

N 46° 33.433 W 090° 36.333 (NAD 83)

Altitude: 772.22

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

Location:
In ASHLAND county, WI View Original Datasheet
Designation:
B 214
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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Documented History (by the NGS)

01/01/1982 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1982 9.6 KM (6.0 MI) SE FROM ODANAH. 9.6 KM (6.0 MI) SOUTHEAST ALONG U.S. HIGHWAY 2 FROM THE JUNCTION OF COUNTY ROAD A IN ODANAH, SET AT A POWERLINE POLE, BEFORE GOING UP A GRADE ON THE HIGHWAY, 26.5 METERS (87.0 FT) SOUTHWEST OF THE CENTERLINE OF THE HIGHWAY, AND 0.6 METER (2.0 FT) NORTHEAST OF A POWERLINE POLE. NOTE, ROD WAS DRIVEN TO REFUSAL. THE MARK IS 0.3 METERS NE FROM A WITNESS POST. THE MARK IS 0.3 M BELOW HIGHWAY.
06/26/1997 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1997 RECOVERED IN GOOD CONDITION.

Control Text

  • 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 June 1991.
  • 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.

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